@charset "UTF-8";
/* ==========================================================================
   精工光电工业镜头 · 全站样式
   风格：北欧板岩工业灰调 / 紧凑型 B2B 工业视觉官网
   说明：颜色、圆角、阴影、动效统一由 :root 变量管理
   ========================================================================== */

:root {
  /* 品牌配色 */
  --c-bg: #f0f5f9;
  --c-bg-soft: #f7fafc;
  --c-surface: #ffffff;
  --c-line: #dce5ec;
  --c-line-strong: #c9d6df;
  --c-primary: #52616b;
  --c-primary-dark: #3f4c55;
  --c-primary-deep: #2c363d;
  --c-ink: #1e2022;
  --c-text: #3c454b;
  --c-muted: #6e7c86;

  /* 功能色（低饱和） */
  --c-success: #4f7365;
  --c-danger: #9c5a5a;

  /* 排版 */
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "Source Han Sans CN",
    "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system,
    "Segoe UI", Arial, sans-serif;

  /* 尺寸 */
  --container: 1240px;
  --header-h: 74px;
  --radius-xs: 3px;
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(30, 32, 34, 0.05);
  --shadow-md: 0 10px 28px rgba(30, 32, 34, 0.08);
  --shadow-lg: 0 22px 48px rgba(30, 32, 34, 0.12);

  /* 动效 */
  --t-fast: 0.2s ease;
  --t: 0.25s ease;
  --t-slow: 0.3s ease;
}

/* ------------------------------ 基础重置 ------------------------------ */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-text);
  background: var(--c-surface);
  -webkit-font-smoothing: antialiased;
}

body.nav-open,
body.lightbox-open {
  overflow: hidden;
}

h1,
h2,
h3,
h4,
h5 {
  margin: 0;
  color: var(--c-ink);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.01em;
}

p {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--t-fast);
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

button {
  font-family: inherit;
  cursor: pointer;
}

figure {
  margin: 0;
}

:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 3px;
}

::selection {
  background: var(--c-line-strong);
  color: var(--c-ink);
}

/* 跳过导航（无障碍） */
.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 300;
  padding: 10px 16px;
  background: var(--c-primary-deep);
  color: #fff;
  border-radius: var(--radius-xs);
  transition: top var(--t-fast);
}

.skip-link:focus {
  top: 12px;
}

/* ------------------------------ 布局工具 ------------------------------ */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 56px 0;
}

.section--tight {
  padding: 40px 0;
}

.section--soft {
  background: var(--c-bg);
}

.section--white {
  background: var(--c-surface);
}

.section--line {
  border-top: 1px solid var(--c-line);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* 段落标题 */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.section-head__main {
  max-width: 760px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-primary);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--c-primary);
}

.section-title {
  margin: 10px 0 10px;
  font-size: 30px;
  font-weight: 600;
  color: var(--c-ink);
}

.section-desc {
  font-size: 14.5px;
  color: var(--c-muted);
  line-height: 1.8;
}

.section-more {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--c-primary);
  white-space: nowrap;
}

.section-more::after {
  content: "→";
  transition: transform var(--t-fast);
}

.section-more:hover {
  color: var(--c-ink);
}

.section-more:hover::after {
  transform: translateX(3px);
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 42px;
  padding: 0 22px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
  border-radius: var(--radius-xs);
  transition: background var(--t-fast), color var(--t-fast),
    border-color var(--t-fast), transform var(--t-fast), box-shadow var(--t-fast);
  white-space: nowrap;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--c-primary);
  color: #fff;
  border-color: var(--c-primary);
}

.btn-primary:hover {
  background: var(--c-primary-dark);
  border-color: var(--c-primary-dark);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--c-primary-deep);
  border-color: var(--c-line-strong);
}

.btn-ghost:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
  background: var(--c-bg-soft);
}

/* 规格书缺失时用不可点击的占位按钮，保持排版稳定 */
.btn.is-disabled,
.btn.is-disabled:hover {
  color: var(--c-muted);
  border-color: var(--c-line);
  background: var(--c-bg-soft);
  cursor: not-allowed;
}

.btn-light {
  background: #fff;
  color: var(--c-primary-deep);
  border-color: #fff;
}

.btn-light:hover {
  background: var(--c-bg);
  color: var(--c-ink);
}

.btn-outline-light {
  background: transparent;
  color: #eef3f7;
  border-color: rgba(255, 255, 255, 0.42);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.7);
  color: #fff;
}

.btn-block {
  width: 100%;
}

.btn-sm {
  height: 34px;
  padding: 0 14px;
  font-size: 13px;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--c-muted);
  margin-bottom: 14px;
}

.breadcrumb a:hover {
  color: var(--c-primary);
}

.breadcrumb li::after {
  content: "/";
  margin-left: 8px;
  color: var(--c-line-strong);
}

.breadcrumb li:last-child::after {
  content: "";
}

.breadcrumb li:last-child {
  color: var(--c-text);
}

/* ------------------------------ 顶部导航 ------------------------------ */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--c-line);
  transition: box-shadow var(--t-fast);
}

.site-header.is-scrolled {
  box-shadow: 0 6px 20px rgba(30, 32, 34, 0.07);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: var(--header-h);
}

/* 品牌标识 */
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 0;
  background: none;
  color: #fff;
}

.brand-mark img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-text strong {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--c-ink);
}

.brand-text em {
  margin-top: 4px;
  font-size: 10.5px;
  font-style: normal;
  letter-spacing: 0.18em;
  color: var(--c-muted);
}

/* 主导航 */
.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  height: 100%;
}

.nav-list {
  display: flex;
  align-items: center;
  height: 100%;
}

.nav-item {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 100%;
  padding: 0 17px;
  font-size: 16px;
  color: var(--c-text);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 17px;
  right: 17px;
  bottom: 0;
  height: 2px;
  background: var(--c-primary);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--t-fast);
}

.nav-link:hover,
.nav-item.is-active > .nav-link {
  color: var(--c-ink);
}

.nav-link:hover::after,
.nav-item.is-active > .nav-link::after {
  transform: scaleX(1);
}

.nav-link .chev {
  width: 9px;
  height: 9px;
  transition: transform var(--t-fast);
}

.nav-item:hover .chev,
.nav-item:focus-within .chev {
  transform: rotate(180deg);
}

.nav-cta {
  height: 38px;
  padding: 0 18px;
  font-size: 13.5px;
}

/* 桌面端 Mega 下拉 */
.mega-panel {
  position: fixed;
  left: 0;
  right: 0;
  top: var(--header-h);
  background: var(--c-surface);
  border-top: 1px solid var(--c-line);
  box-shadow: 0 24px 40px rgba(30, 32, 34, 0.1);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity var(--t-fast), transform var(--t-fast), visibility var(--t-fast);
}

.nav-item.has-mega:hover > .mega-panel,
.nav-item.has-mega:focus-within > .mega-panel,
.nav-item.has-mega.is-open > .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mega-inner {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px 28px;
  padding: 26px 24px 22px;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
}

.mega-col h3 {
  font-size: 13.5px;
  font-weight: 600;
  padding-bottom: 9px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--c-line);
}

.mega-col h3 a:hover {
  color: var(--c-primary);
}

.mega-col li a {
  display: block;
  padding: 4px 0;
  font-size: 13px;
  color: var(--c-muted);
  line-height: 1.6;
}

.mega-col li a:hover {
  color: var(--c-primary);
  transform: translateX(2px);
}

.mega-foot {
  border-top: 1px solid var(--c-line);
  background: var(--c-bg-soft);
}

.mega-foot-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 12px 24px;
  max-width: var(--container);
  margin: 0 auto;
  font-size: 12.5px;
  color: var(--c-muted);
}

.mega-foot a {
  font-weight: 600;
  color: var(--c-primary);
}

.mega-foot a:hover {
  color: var(--c-ink);
}

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--c-line-strong);
  border-radius: var(--radius-xs);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.6px;
  background: var(--c-ink);
  transition: transform var(--t-fast), opacity var(--t-fast);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6.6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6.6px) rotate(-45deg);
}

/* ------------------------------ 首页 Hero ------------------------------ */
.hero {
  padding: calc(var(--header-h) + 48px) 0 54px;
  background: linear-gradient(180deg, var(--c-bg-soft) 0%, var(--c-bg) 62%, var(--c-bg) 100%);
  border-bottom: 1px solid var(--c-line);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
  align-items: center;
  gap: 48px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--c-primary);
}

.hero-eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--c-primary);
}

.hero h1 {
  margin: 16px 0 14px;
  font-size: 44px;
  line-height: 1.28;
  letter-spacing: 0.01em;
}

.hero h1 .hero-title-sub {
  display: block;
  margin-top: 6px;
  font-size: 24px;
  font-weight: 400;
  color: var(--c-primary);
  letter-spacing: 0.04em;
}

.hero-lead {
  max-width: 560px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 26px;
}

.hero-note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--c-muted);
}

.hero-note i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-primary);
  opacity: 0.75;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin-top: 34px;
  border-top: 1px solid var(--c-line-strong);
  padding-top: 20px;
  max-width: 580px;
}

.hero-stat {
  padding-right: 16px;
  border-right: 1px solid var(--c-line);
}

.hero-stat:last-child {
  border-right: 0;
  padding-right: 0;
}

.hero-stat strong {
  display: block;
  font-size: 24px;
  font-weight: 600;
  color: var(--c-ink);
  line-height: 1.2;
}

.hero-stat strong span {
  font-size: 13px;
  font-weight: 400;
  color: var(--c-muted);
  margin-left: 2px;
}

.hero-stat em {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  font-style: normal;
  color: var(--c-muted);
}

/* 右侧产品视觉 */
.hero-visual {
  position: relative;
}

.hero-frame {
  position: relative;
  padding: 12px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.hero-frame img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background: var(--c-bg-soft);
}

.hero-frame::before,
.hero-frame::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border-color: var(--c-primary);
  border-style: solid;
  opacity: 0.45;
  pointer-events: none;
}

.hero-frame::before {
  top: 4px;
  left: 4px;
  border-width: 1px 0 0 1px;
}

.hero-frame::after {
  right: 4px;
  bottom: 4px;
  border-width: 0 1px 1px 0;
}

.hero-badge {
  position: absolute;
  left: -18px;
  bottom: 26px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-primary);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
}

.hero-badge strong {
  display: block;
  font-size: 14px;
  color: var(--c-ink);
  letter-spacing: 0.03em;
}

.hero-badge span {
  display: block;
  font-size: 11.5px;
  color: var(--c-muted);
  margin-top: 2px;
}

.hero-badge-tag {
  padding: 3px 8px;
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--c-primary);
  background: var(--c-bg);
  border-radius: var(--radius-xs);
}

.hero-visual-tag {
  position: absolute;
  top: 26px;
  right: 26px;
  padding: 5px 10px;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--c-primary-deep);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-xs);
}

/* ------------------------------ 数据条 / 企业实力 ------------------------------ */
.stats-band {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.stats-band__item {
  padding: 28px 28px;
  background: var(--c-surface);
}

.stats-band__item strong {
  display: block;
  font-size: 36px;
  font-weight: 600;
  color: var(--c-primary-deep);
  line-height: 1.2;
}

.stats-band__item strong small {
  font-size: 15px;
  font-weight: 400;
  color: var(--c-muted);
  margin-left: 4px;
}

.stats-band__item span {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
}

.about-split {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 1fr);
  gap: 54px;
  align-items: center;
}

.about-split .section-title {
  margin-bottom: 18px;
  font-size: 38px;
  line-height: 1.35;
}

.about-split .eyebrow {
  font-size: 12.5px;
}

.about-split p {
  font-size: 17px;
  line-height: 1.95;
  margin-bottom: 16px;
}

.about-media {
  position: relative;
}

.about-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-line);
  background: var(--c-bg);
}

.about-media__note {
  position: absolute;
  right: 16px;
  bottom: 16px;
  padding: 8px 12px;
  font-size: 11.5px;
  color: var(--c-primary-deep);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-xs);
}

.about-points {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 26px;
  margin-top: 24px;
  padding-top: 22px;
  border-top: 1px solid var(--c-line);
}

.about-points li {
  position: relative;
  padding-left: 18px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-text);
}

.about-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  background: var(--c-primary);
  border-radius: 50%;
}

/* ------------------------------ 核心技术优势 ------------------------------ */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  padding: 22px 22px 24px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  transition: border-color var(--t-fast), box-shadow var(--t-fast),
    transform var(--t-fast);
}

.feature-card:hover {
  border-color: var(--c-line-strong);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.feature-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 14px;
  color: var(--c-primary);
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
}

.feature-icon svg {
  width: 21px;
  height: 21px;
}

.feature-card h3 {
  font-size: 15.5px;
  margin-bottom: 6px;
}

.feature-card p {
  font-size: 13px;
  color: var(--c-muted);
  line-height: 1.8;
}

.feature-card__meta {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--c-line);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--c-primary);
}

/* 首页「核心技术优势」：字号与间距整体放大（仅作用于该区块） */
.section--tech .section-head {
  margin-bottom: 36px;
}

.section--tech .section-title {
  font-size: 36px;
}

.section--tech .section-desc {
  font-size: 15.5px;
  line-height: 1.85;
}

.section--tech .feature-grid {
  gap: 30px 38px;
}

.section--tech .feature-card {
  padding: 28px 0 14px;
}

.section--tech .feature-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 16px;
}

.section--tech .feature-icon svg {
  width: 24px;
  height: 24px;
}

.section--tech .feature-card h3 {
  font-size: 18px;
  margin-bottom: 9px;
}

.section--tech .feature-card p {
  font-size: 15.5px;
  line-height: 1.85;
}

/* 指标行需高于 .section--tech .feature-card p 的优先级，否则会被正文 15.5px 覆盖 */
.section--tech .feature-card p.feature-card__meta {
  margin-top: 15px;
  padding-top: 12px;
  font-size: 13.5px;
}

@media (max-width: 1024px) {
  .section--tech .section-title {
    font-size: 30px;
  }
}

@media (max-width: 768px) {
  .section--tech .section-head {
    margin-bottom: 24px;
  }

  .section--tech .section-title {
    font-size: 24px;
  }

  .section--tech .feature-card h3 {
    font-size: 17px;
  }

  .section--tech .feature-card p {
    font-size: 14.5px;
  }

  .section--tech .feature-card p.feature-card__meta {
    font-size: 13px;
  }
}

/* ------------------------------ 产品卡片 ------------------------------ */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(248px, 1fr));
  gap: 16px;
}

.product-card {
  display: flex;
  flex-direction: column;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--t-fast), box-shadow var(--t-fast),
    border-color var(--t-fast);
}

.product-card:hover {
  transform: translateY(-2px);
  border-color: var(--c-line-strong);
  box-shadow: var(--shadow-md);
}

.product-media {
  position: relative;
  display: block;
  aspect-ratio: 4 / 3;
  background: var(--c-bg-soft);
  overflow: hidden;
  border-bottom: 1px solid var(--c-line);
}

.product-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}

.product-card:hover .product-media img {
  transform: scale(1.03);
}

/* 图片缺失时的中性占位（避免出现裂图） */
.product-media.is-empty,
.detail-gallery__main.is-empty {
  background:
    radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.9) 0 30%, transparent 30%),
    linear-gradient(160deg, #f6f9fb, #e4ecf2);
}

.product-cat {
  position: absolute;
  top: 10px;
  left: 10px;
  padding: 3px 8px;
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: var(--c-primary-deep);
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-xs);
}

.product-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 14px 16px 16px;
}

.product-model {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--c-muted);
}

.product-name {
  margin: 4px 0 9px;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-ink);
  line-height: 1.5;
}

.product-name a:hover {
  color: var(--c-primary);
}

.product-spec {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 14px;
}

.product-spec span {
  padding: 2px 7px;
  font-size: 11px;
  color: var(--c-text);
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-xs);
}

.product-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: auto;
  padding-top: 11px;
  border-top: 1px dashed var(--c-line);
  font-size: 12.5px;
}

.product-foot .link-detail {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-weight: 600;
  color: var(--c-primary);
}

.product-foot .link-detail::after {
  content: "→";
  transition: transform var(--t-fast);
}

.product-card:hover .link-detail::after {
  transform: translateX(3px);
}

.product-foot .link-inquire {
  color: var(--c-muted);
}

.product-foot .link-inquire:hover {
  color: var(--c-ink);
}

/* ------------------------------ 行业应用预览 ------------------------------ */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.industry-card {
  display: block;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--t-fast), box-shadow var(--t-fast),
    transform var(--t-fast);
}

.industry-card:hover {
  border-color: var(--c-line-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.industry-card__media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--c-bg);
  border-bottom: 1px solid var(--c-line);
}

.industry-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}

.industry-card:hover .industry-card__media img {
  transform: scale(1.03);
}

.industry-card__body {
  padding: 15px 18px 17px;
}

.industry-card__body h3 {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 15px;
}

.industry-card__body h3::after {
  content: "→";
  font-size: 13px;
  color: var(--c-primary);
  transition: transform var(--t-fast);
}

.industry-card:hover h3::after {
  transform: translateX(3px);
}

.industry-card__body p {
  margin-top: 5px;
  font-size: 12.5px;
  color: var(--c-muted);
  line-height: 1.75;
}

/* ------------------------------ 技术服务 / 流程 ------------------------------ */
.service-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.service-item {
  padding: 20px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}

.service-item__icon {
  color: var(--c-primary);
  margin-bottom: 10px;
}

.service-item__icon svg {
  width: 22px;
  height: 22px;
}

.service-item h3 {
  font-size: 14.5px;
  margin-bottom: 5px;
}

.service-item p {
  font-size: 12.5px;
  color: var(--c-muted);
  line-height: 1.75;
}

.process {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin-top: 26px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-surface);
}

.process-step {
  padding: 20px 22px;
  border-right: 1px solid var(--c-line);
}

.process-step:last-child {
  border-right: 0;
}

.process-step em {
  display: inline-block;
  font-size: 11px;
  font-style: normal;
  letter-spacing: 0.16em;
  color: var(--c-primary);
}

.process-step h3 {
  font-size: 14px;
  margin: 6px 0 4px;
}

.process-step p {
  font-size: 12px;
  color: var(--c-muted);
  line-height: 1.7;
}

/* 首页「技术服务」：字号与间距放大（仅作用于该区块） */
.section--service .section-head {
  margin-bottom: 36px;
}

.section--service .section-title {
  font-size: 36px;
}

.section--service .section-desc {
  max-width: 780px;
  font-size: 15.5px;
  line-height: 1.85;
}

.section--service .service-grid {
  gap: 28px 30px;
}

.section--service .service-item {
  padding: 26px 0 10px;
}

.section--service .service-item__icon {
  margin-bottom: 12px;
}

.section--service .service-item__icon svg {
  width: 26px;
  height: 26px;
}

.section--service .service-item h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.section--service .service-item p {
  font-size: 14px;
  line-height: 1.85;
}

.section--service .process {
  margin-top: 32px;
}

.section--service .process-step {
  padding: 24px 26px;
}

.section--service .process-step em {
  font-size: 12px;
}

.section--service .process-step h3 {
  font-size: 16.5px;
  margin: 8px 0 6px;
}

.section--service .process-step p {
  font-size: 13.5px;
  line-height: 1.8;
}

@media (max-width: 1024px) {
  .section--service .section-title {
    font-size: 30px;
  }
}

@media (max-width: 768px) {
  .section--service .section-title {
    font-size: 24px;
  }

  .section--service .service-item h3,
  .section--service .process-step h3 {
    font-size: 16px;
  }

  .section--service .service-item p,
  .section--service .process-step p {
    font-size: 13.5px;
  }
}

/* ------------------------------ CTA 引导区块 ------------------------------ */
.cta-band {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 34px 38px;
  color: #eaf0f4;
  background: linear-gradient(120deg, var(--c-primary-deep) 0%, var(--c-primary-dark) 58%, var(--c-primary) 100%);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.cta-band::before {
  content: "";
  position: absolute;
  right: -60px;
  top: -80px;
  width: 320px;
  height: 320px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  pointer-events: none;
}

.cta-band__text {
  position: relative;
  max-width: 680px;
}

.cta-band__text .eyebrow {
  color: #c9d6df;
}

.cta-band__text .eyebrow::before {
  background: #c9d6df;
}

.cta-band h2 {
  margin: 8px 0 8px;
  font-size: 24px;
  color: #fff;
}

.cta-band p {
  font-size: 13.5px;
  color: #c3ced6;
  line-height: 1.8;
}

.cta-band__actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  flex: none;
}

/* ------------------------------ 页脚 ------------------------------ */
.site-footer {
  background: var(--c-ink);
  color: #a9b6c0;
  font-size: 13px;
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.9fr) minmax(0, 0.8fr) minmax(0, 1.15fr);
  gap: 56px;
  padding-top: 44px;
  padding-bottom: 34px;
}

.footer-brand .brand-text strong {
  color: #fff;
}

.footer-brand .brand-text em {
  color: #8595a1;
}

.footer-slogan {
  margin: 16px 0 12px;
  font-size: 13px;
  line-height: 1.8;
  color: #b8c4cd;
}

.footer-desc {
  font-size: 12px;
  line-height: 1.85;
  color: #8595a1;
}

.footer-col h3 {
  margin-bottom: 16px;
  font-size: 13.5px;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.06em;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  font-size: 12.5px;
  color: #9fadb8;
  line-height: 1.6;
}

.footer-col ul li a:hover {
  color: #fff;
}

.footer-contact li {
  display: flex;
  gap: 9px;
  margin-bottom: 11px;
  font-size: 12.5px;
  line-height: 1.7;
  color: #9fadb8;
}

.footer-contact svg {
  flex: none;
  width: 14px;
  height: 14px;
  margin-top: 4px;
  color: #6e7c86;
}

.footer-contact strong {
  color: #e6edf2;
  font-weight: 500;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 24px;
  font-size: 12px;
  color: #7f8e99;
  max-width: var(--container);
  margin: 0 auto;
  flex-wrap: wrap;
}

.footer-bottom__links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom__links a:hover {
  color: #fff;
}

/* ------------------------------ 子页面页头 ------------------------------ */
.page-hero {
  padding: calc(var(--header-h) + 40px) 0 34px;
  background: linear-gradient(180deg, var(--c-bg-soft) 0%, var(--c-bg) 100%);
  border-bottom: 1px solid var(--c-line);
}

.page-hero__grid {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
}

.page-hero h1 {
  margin: 10px 0 10px;
  font-size: 32px;
}

.page-hero p {
  max-width: 720px;
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.85;
}

.page-hero__aside {
  flex: none;
  display: flex;
  gap: 28px;
  padding-bottom: 4px;
}

.page-hero__aside div strong {
  display: block;
  font-size: 22px;
  font-weight: 600;
  color: var(--c-primary-deep);
  line-height: 1.2;
}

.page-hero__aside div span {
  display: block;
  margin-top: 3px;
  font-size: 11.5px;
  color: var(--c-muted);
}

/* ------------------------------ 产品中心 ------------------------------ */
.catalog-layout {
  display: grid;
  grid-template-columns: 246px minmax(0, 1fr);
  gap: 30px;
  align-items: start;
}

.filter-panel {
  position: sticky;
  top: calc(var(--header-h) + 18px);
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.filter-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: var(--c-bg-soft);
  border-bottom: 1px solid var(--c-line);
  font-size: 13px;
  font-weight: 600;
  color: var(--c-ink);
}

.filter-panel__head span {
  font-size: 11px;
  font-weight: 400;
  color: var(--c-muted);
}

.cat-tree {
  padding: 10px 8px 14px;
  max-height: calc(100vh - var(--header-h) - 120px);
  overflow-y: auto;
}

.cat-tree__all {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-ink);
  border-radius: var(--radius-xs);
  background: var(--c-bg);
}

.cat-tree__all:hover {
  background: var(--c-line);
}

.cat-group {
  border-top: 1px dashed var(--c-line);
  padding: 8px 0 4px;
}

.cat-group:first-of-type {
  border-top: 0;
}

.cat-group__title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-ink);
  border-radius: var(--radius-xs);
}

.cat-group__title:hover {
  color: var(--c-primary);
  background: var(--c-bg-soft);
}

.cat-group__title.is-active {
  color: #fff;
  background: var(--c-primary);
}

.cat-group ul {
  padding: 2px 0 4px;
}

.cat-group ul a {
  display: block;
  padding: 6px 10px 6px 20px;
  font-size: 12.5px;
  color: var(--c-muted);
  border-radius: var(--radius-xs);
  transition: background var(--t-fast), color var(--t-fast);
}

.cat-group ul a:hover {
  color: var(--c-primary);
  background: var(--c-bg-soft);
}

.cat-group ul a.is-active {
  color: var(--c-primary-deep);
  background: var(--c-bg);
  font-weight: 600;
  box-shadow: inset 2px 0 0 var(--c-primary);
}

.catalog-main {
  min-width: 0;
}

.catalog-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  padding: 0 0 16px;
  border-bottom: 1px solid var(--c-line);
  margin-bottom: 20px;
}

.catalog-summary {
  font-size: 13px;
  color: var(--c-muted);
}

.catalog-summary strong {
  color: var(--c-ink);
  font-weight: 600;
}

.catalog-tools {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.search-box {
  position: relative;
}

.search-box svg {
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  width: 15px;
  height: 15px;
  color: var(--c-muted);
  pointer-events: none;
}

.search-box input {
  width: 236px;
  height: 38px;
  padding: 0 12px 0 34px;
  font-family: inherit;
  font-size: 13px;
  color: var(--c-text);
  background: var(--c-surface);
  border: 1px solid var(--c-line-strong);
  border-radius: var(--radius-xs);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}

.search-box input::placeholder {
  color: #96a4ae;
}

.search-box input:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(82, 97, 107, 0.1);
}

.sort-box {
  height: 38px;
  padding: 0 8px;
  font-family: inherit;
  font-size: 13px;
  color: var(--c-text);
  background: var(--c-surface);
  border: 1px solid var(--c-line-strong);
  border-radius: var(--radius-xs);
}

.mobile-cat {
  display: none;
  width: 100%;
  height: 40px;
  margin-bottom: 14px;
  padding: 0 10px;
  font-family: inherit;
  font-size: 13px;
  color: var(--c-text);
  background: var(--c-surface);
  border: 1px solid var(--c-line-strong);
  border-radius: var(--radius-xs);
}

.catalog-titlebar {
  margin-bottom: 16px;
}

.catalog-titlebar h2 {
  font-size: 21px;
  margin-bottom: 4px;
}

.catalog-titlebar p {
  font-size: 13px;
  color: var(--c-muted);
}

.empty-state {
  padding: 54px 24px;
  text-align: center;
  background: var(--c-bg-soft);
  border: 1px dashed var(--c-line-strong);
  border-radius: var(--radius);
}

.empty-state svg {
  width: 34px;
  height: 34px;
  color: var(--c-line-strong);
  margin: 0 auto 10px;
}

.empty-state h3 {
  font-size: 15px;
  margin-bottom: 6px;
}

.empty-state p {
  font-size: 13px;
  color: var(--c-muted);
}

/* 数据加载提示 */
.data-notice {
  padding: 12px 16px;
  margin-bottom: 16px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--c-primary-deep);
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-primary);
  border-radius: var(--radius-xs);
}

/* ------------------------------ 产品详情 ------------------------------ */
/* 详情页主体：为固定导航预留顶部空间 */
.detail-page {
  padding: calc(var(--header-h) + 28px) 0 64px;
  background: var(--c-bg-soft);
}

.detail-page .breadcrumb {
  margin-bottom: 18px;
}

.detail-top {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.detail-gallery__main {
  position: relative;
  padding: 10px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  cursor: zoom-in;
}

.detail-gallery__main img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-xs);
  background: var(--c-bg-soft);
}

.detail-gallery__hint {
  position: absolute;
  right: 18px;
  bottom: 18px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 9px;
  font-size: 11px;
  color: var(--c-primary-deep);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-xs);
}

.detail-info h1 {
  font-size: 27px;
  margin: 8px 0 6px;
}

.detail-info__model {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-muted);
}

.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 10px 0 14px;
}

.detail-tags span {
  padding: 3px 9px;
  font-size: 11.5px;
  color: var(--c-primary-deep);
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-xs);
}

.detail-summary {
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.85;
}

.key-specs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 20px 0;
  background: var(--c-line);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.key-specs div {
  padding: 12px 16px;
  background: var(--c-surface);
}

.key-specs span {
  display: block;
  font-size: 11.5px;
  color: var(--c-muted);
}

.key-specs strong {
  display: block;
  margin-top: 2px;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-ink);
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 6px;
}

.detail-meta {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px dashed var(--c-line);
  font-size: 12.5px;
  color: var(--c-muted);
  line-height: 1.9;
}

.detail-meta strong {
  color: var(--c-text);
  font-weight: 500;
}

.detail-section {
  padding: 44px 0;
  border-top: 1px solid var(--c-line);
}

.detail-section:first-of-type {
  border-top: 0;
}

.detail-section h2 {
  font-size: 20px;
  margin-bottom: 14px;
}

.detail-section h2 span {
  display: inline-block;
  margin-left: 8px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-muted);
  font-weight: 400;
}

.detail-cols {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

/* 产品概述正文：分段说明，段落间留白，便于阅读与检索 */
.detail-overview p {
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--c-text);
  line-height: 1.9;
}

.detail-overview p:first-child {
  font-size: 15px;
  color: #46525a;
}

.detail-overview h3 {
  margin: 18px 0 10px;
  font-size: 15px;
  color: var(--c-text);
}

.detail-overview strong {
  color: var(--c-primary-deep);
}

/* 适用场景：两列排布，窄屏自动单列 */
.detail-scenes {
  columns: 2;
  column-gap: 32px;
}

.detail-note {
  margin-top: 14px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--c-muted);
}

.detail-note a {
  color: var(--c-primary);
}

/* 选型常见问题：问答列表 */
.detail-faq {
  max-width: 900px;
}

.detail-faq dt {
  position: relative;
  margin-bottom: 8px;
  padding-left: 20px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--c-text);
  line-height: 1.7;
}

.detail-faq dt::before {
  content: "Q";
  position: absolute;
  left: 0;
  color: var(--c-primary);
}

.detail-faq dd {
  position: relative;
  margin: 0 0 18px;
  padding: 0 0 0 20px;
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.9;
}

.detail-faq dd::before {
  content: "A";
  position: absolute;
  left: 0;
  color: #9aa6ad;
}

.feature-list li {
  position: relative;
  padding: 0 0 10px 18px;
  font-size: 13.5px;
  color: var(--c-text);
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border: 1px solid var(--c-primary);
  border-radius: 50%;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  -webkit-overflow-scrolling: touch;
}

.spec-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 13.5px;
}

.spec-table caption {
  caption-side: top;
  text-align: left;
  padding: 0;
}

.spec-table th,
.spec-table td {
  padding: 10px 16px;
  text-align: left;
  border-bottom: 1px solid var(--c-line);
  vertical-align: top;
}

.spec-table thead th {
  background: var(--c-bg-soft);
  font-weight: 600;
  color: var(--c-primary-deep);
  white-space: nowrap;
}

.spec-table tbody th {
  width: 150px;
  font-weight: 500;
  color: var(--c-muted);
  background: var(--c-bg-soft);
  white-space: nowrap;
}

.spec-table tbody tr:last-child th,
.spec-table tbody tr:last-child td {
  border-bottom: 0;
}

.dimension-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: 24px;
  align-items: center;
  padding: 18px;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}

/* 无尺寸图纸时（全站统一不配图纸）：单栏文字说明，不留空白图框 */
.dimension-card--text {
  grid-template-columns: minmax(0, 1fr);
}

.dimension-card--text .dimension-card__text {
  max-width: 760px;
}

.dimension-card--text p + p {
  margin-top: 8px;
}

.dimension-card__text h3 {
  font-size: 14px;
  margin-bottom: 6px;
}

.dimension-card__text p {
  font-size: 12.5px;
  color: var(--c-muted);
  line-height: 1.8;
  margin-bottom: 12px;
}

.doc-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 20px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}

.doc-card__main {
  display: flex;
  align-items: center;
  gap: 14px;
}

.doc-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  color: var(--c-primary);
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-xs);
  flex: none;
}

.doc-card h3 {
  font-size: 14px;
  margin-bottom: 2px;
}

.doc-card p {
  font-size: 12px;
  color: var(--c-muted);
}

/* ------------------------------ 技术支持 ------------------------------ */
.doc-table td,
.doc-table th {
  white-space: nowrap;
}

.doc-table td:first-child {
  white-space: normal;
  min-width: 220px;
}

.doc-table .file-name {
  display: block;
  font-size: 13px;
  color: var(--c-ink);
}

.doc-table .file-meta {
  display: block;
  font-size: 11.5px;
  color: var(--c-muted);
  margin-top: 2px;
}

/* 规格书下载：统计行与表下注释 */
.doc-summary {
  margin-top: 10px;
  font-size: 14px;
  color: var(--c-text);
}

.doc-note {
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.85;
  color: var(--c-muted);
}

.doc-note a {
  color: var(--c-ink);
  text-decoration: underline;
}

/* 规格书下载：搜索框放在区块右上角 */
.doc-search-box {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  flex: 0 1 360px;
  align-self: flex-start;
}

.doc-search {
  flex: 1 1 320px;
  max-width: 420px;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--c-text);
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-xs);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}

.doc-search-box .doc-search {
  flex: none;
  width: 100%;
  max-width: 360px;
}

.doc-search:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(38, 166, 92, 0.12);
}

/* 规格书下载：二级系列标签 + 分页列表 */
.doc-empty {
  margin: 18px 0;
  font-size: 14px;
  color: var(--c-muted);
}

.doc-empty a {
  color: var(--c-ink);
  text-decoration: underline;
}

.doc-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

/* 系列标签：做成明确的按钮形态，避免被当成普通文案 */
.doc-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  font-size: 15px;
  font-weight: 500;
  color: var(--c-ink);
  background: #fff;
  border: 1px solid #ccd5da;
  border-radius: 999px;
  box-shadow: 0 1px 2px rgba(27, 32, 33, 0.06);
  cursor: pointer;
  transition: color var(--t-fast), background var(--t-fast), border-color var(--t-fast), box-shadow var(--t-fast);
}

.doc-tab span {
  padding: 0 8px;
  font-size: 12.5px;
  line-height: 19px;
  color: var(--c-muted);
  background: var(--c-bg-soft);
  border-radius: 999px;
}

.doc-tab:hover {
  border-color: var(--c-primary);
  color: var(--c-primary-deep);
  box-shadow: 0 3px 10px rgba(38, 166, 92, 0.16);
}

.doc-tab.is-active {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: #fff;
  box-shadow: 0 3px 12px rgba(38, 166, 92, 0.3);
}

.doc-tab.is-active span {
  color: #fff;
  background: rgba(255, 255, 255, 0.22);
}

.doc-panel {
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
}

.doc-panel .table-wrap {
  border: 0;
  border-radius: 0;
}

/* 分页器 */
.doc-pager {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 14px 16px;
  border-top: 1px solid var(--c-line);
  background: var(--c-bg-soft);
}

.doc-pager__btn {
  min-width: 34px;
  padding: 6px 10px;
  font-size: 13px;
  color: var(--c-text);
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: color var(--t-fast), background var(--t-fast), border-color var(--t-fast);
}

.doc-pager__btn:hover:not(:disabled) {
  border-color: var(--c-primary);
  color: var(--c-primary-deep);
}

.doc-pager__btn.is-active {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: #fff;
}

.doc-pager__btn:disabled {
  color: #c2c9cd;
  cursor: not-allowed;
}

.doc-pager__gap {
  padding: 0 2px;
  font-size: 13px;
  color: var(--c-muted);
}

.doc-pager__info {
  margin-left: 6px;
  font-size: 12.5px;
  color: var(--c-muted);
}

/* 逐型号规格书表：一列一个参数，紧凑排布（提高优先级覆盖 .spec-table 的大字号） */
.spec-table.doc-table--specs {
  table-layout: fixed;
  font-size: 12.5px;
}

.spec-table.doc-table--specs th,
.spec-table.doc-table--specs td {
  padding: 9px 8px;
  font-size: 12.5px;
  text-align: center;
  vertical-align: middle;
  /* 参数值允许换行，避免窄列溢出 */
  white-space: normal;
}

.doc-table--specs td:first-child,
.doc-table--specs th:first-child {
  text-align: left;
}

/* 列宽：型号与规格书较宽，参数列等分剩余宽度 */
.doc-table--specs th:nth-child(1) { width: 22%; }
.doc-table--specs th:nth-child(2) { width: 12%; }
.doc-table--specs th:nth-child(3) { width: 11%; }
.doc-table--specs th:nth-child(4) { width: 10%; }
.doc-table--specs th:nth-child(5) { width: 10%; }
.doc-table--specs th:nth-child(6) { width: 10%; }
.doc-table--specs th:nth-child(7) { width: 11%; }
.doc-table--specs th:nth-child(8) { width: 14%; }

.doc-table--specs .doc-cell-model {
  display: table-cell;
  vertical-align: middle;
}

.doc-table--specs .doc-model {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-ink);
  word-break: break-all;
}

.doc-table--specs .doc-model:hover {
  color: var(--c-primary);
}

/* 搜索态：型号下方标出所属系列 */
.doc-model__series {
  display: none;
  margin-top: 2px;
  font-size: 11.5px;
  font-style: normal;
  color: var(--c-muted);
}

.doc-table--specs.is-searching .doc-model__series {
  display: block;
}

/* 「全部参数」开关 */
.doc-expand {
  display: block;
  margin-top: 4px;
  padding: 0;
  font-size: 11.5px;
  color: var(--c-muted);
  background: none;
  border: 0;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.doc-expand:hover,
.doc-expand.is-open {
  color: var(--c-primary-deep);
}

/* 展开行：补充参数 + 特征描述 */
.spec-table .doc-detail td {
  padding: 0 8px 12px;
  font-size: 12.5px;
  text-align: left;
  background: var(--c-bg-soft);
}

.doc-detail__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 10px;
}

.doc-detail__item {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  max-width: 100%;
  padding: 4px 10px;
  font-size: 12px;
  color: var(--c-text);
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-xs);
}

.doc-detail__item b {
  font-weight: 600;
  color: var(--c-muted);
  white-space: nowrap;
}

.doc-detail__summary {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--c-muted);
}

.doc-download {
  white-space: nowrap;
}

/* 窄屏：标签与分页器收紧 */
@media (max-width: 1024px) {
  .doc-table--specs {
    table-layout: auto;
    min-width: 760px;
  }
}

@media (max-width: 768px) {
  /* 窄屏时 section-head 变为纵向排列，搜索框回到整行宽度 */
  .doc-search-box {
    align-self: stretch;
    flex: none;
    width: 100%;
    align-items: stretch;
  }

  .doc-search-box .doc-search {
    max-width: none;
  }

  .doc-tab {
    padding: 10px 18px;
    font-size: 14px;
  }

  .doc-pager {
    padding: 12px 10px;
  }

  .doc-pager__info {
    width: 100%;
    margin: 6px 0 0;
    text-align: center;
  }
}

.support-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.faq-item {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--t-fast);
}

.faq-item:hover {
  border-color: var(--c-line-strong);
}

.faq-item.is-open {
  border-color: var(--c-line-strong);
}

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: 100%;
  padding: 15px 18px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.6;
  text-align: left;
  color: var(--c-ink);
  background: transparent;
  border: 0;
}

.faq-q:hover {
  color: var(--c-primary);
}

.faq-icon {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: currentColor;
  transform: translate(-50%, -50%);
  transition: transform var(--t-fast), opacity var(--t-fast);
}

.faq-icon::before {
  width: 12px;
  height: 1.4px;
}

.faq-icon::after {
  width: 1.4px;
  height: 12px;
}

.faq-item.is-open .faq-icon::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--t-slow);
}

.faq-a__inner {
  padding: 0 18px 16px;
  font-size: 13px;
  line-height: 1.9;
  color: var(--c-muted);
}

.faq-a__inner p + p {
  margin-top: 8px;
}

/* 选型四步法 */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.step-card {
  padding: 20px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}

.step-card em {
  display: inline-block;
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-primary);
  margin-bottom: 8px;
}

.step-card h3 {
  font-size: 14.5px;
  margin-bottom: 5px;
}

.step-card p {
  font-size: 12.5px;
  color: var(--c-muted);
  line-height: 1.75;
}

/* ------------------------------ 行业应用页 ------------------------------ */
.app-block {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 28px;
  align-items: center;
  padding: 20px 0;
  border-top: 1px solid var(--c-line);
}

.app-block:first-of-type {
  border-top: 0;
  padding-top: 4px;
}

.app-block:nth-child(even) .app-block__media {
  order: 2;
}

.app-block__media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
}

.app-block__media img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.app-block__body {
  align-content: start;
}

.app-block__body h2 {
  font-size: 26px;
  margin: 10px 0 12px;
}

.app-block__body p {
  font-size: 15px;
  color: var(--c-muted);
  line-height: 1.9;
  margin-bottom: 12px;
}

.app-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.app-keywords span {
  padding: 4px 10px;
  font-size: 12.5px;
  color: var(--c-primary-deep);
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-xs);
}

.app-lenses {
  padding: 12px 14px;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-primary);
  border-radius: var(--radius-xs);
  margin-bottom: 14px;
}

.app-lenses h3 {
  font-size: 12.5px;
  color: var(--c-muted);
  font-weight: 500;
  margin-bottom: 4px;
}

.app-lenses p {
  margin: 0;
  font-size: 13.5px;
  color: var(--c-text);
  line-height: 1.8;
}

.app-lenses a {
  color: var(--c-primary);
  font-weight: 500;
}

.app-lenses a:hover {
  color: var(--c-ink);
}

/* ------------------------------ 关于我们 ------------------------------ */
.timeline {
  position: relative;
  padding-left: 26px;
  border-left: 1px solid var(--c-line-strong);
}

.timeline li {
  position: relative;
  padding-bottom: 22px;
}

.timeline li:last-child {
  padding-bottom: 0;
}

.timeline li::before {
  content: "";
  position: absolute;
  left: -32px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--c-surface);
  border: 2px solid var(--c-primary);
  border-radius: 50%;
}

.timeline time {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-primary);
  margin-bottom: 2px;
}

.timeline h3 {
  font-size: 14.5px;
  margin-bottom: 3px;
}

.timeline p {
  font-size: 12.5px;
  color: var(--c-muted);
  line-height: 1.75;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.capability-card {
  padding: 22px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}

.capability-card h3 {
  font-size: 17px;
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--c-line);
}

.capability-card p {
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.8;
}

.capability-card ul {
  margin-top: 12px;
}

.capability-card ul li {
  position: relative;
  padding-left: 14px;
  font-size: 13.5px;
  color: var(--c-text);
  margin-bottom: 6px;
}

.capability-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 4px;
  height: 4px;
  background: var(--c-primary);
  border-radius: 50%;
}

.quality-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 28px;
}

.quality-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--c-line);
  font-size: 13px;
  color: var(--c-text);
}

.quality-list svg {
  flex: none;
  width: 15px;
  height: 15px;
  margin-top: 5px;
  color: var(--c-primary);
}

/* ------------------------------ 联系我们 ------------------------------ */
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
  gap: 34px;
  align-items: start;
}

.form-card {
  padding: 28px 30px 30px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.form-card > h2 {
  font-size: 20px;
  margin-bottom: 4px;
}

.form-card > p {
  font-size: 12.5px;
  color: var(--c-muted);
  margin-bottom: 20px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field--full {
  grid-column: 1 / -1;
}

.field label {
  font-size: 12.5px;
  font-weight: 500;
  color: var(--c-text);
}

.field label .req {
  color: var(--c-danger);
  margin-left: 2px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0 12px;
  height: 40px;
  font-family: inherit;
  font-size: 13.5px;
  color: var(--c-text);
  background: var(--c-surface);
  border: 1px solid var(--c-line-strong);
  border-radius: var(--radius-xs);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}

.field textarea {
  height: 104px;
  padding: 10px 12px;
  resize: vertical;
  line-height: 1.7;
}

.field input::placeholder,
.field textarea::placeholder {
  color: #97a5af;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(82, 97, 107, 0.1);
}

.field.has-error input,
.field.has-error select,
.field.has-error textarea {
  border-color: var(--c-danger);
}

.error-msg {
  display: none;
  font-size: 11.5px;
  color: var(--c-danger);
  line-height: 1.5;
}

.field.has-error .error-msg {
  display: block;
}

.checkbox-field {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  grid-column: 1 / -1;
  font-size: 12px;
  color: var(--c-muted);
  line-height: 1.7;
}

.checkbox-field input {
  width: 15px;
  height: 15px;
  margin-top: 3px;
  flex: none;
  accent-color: var(--c-primary);
}

.form-actions {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  padding-top: 4px;
}

.form-actions .btn {
  height: 44px;
  padding: 0 30px;
}

.form-hint {
  font-size: 11.5px;
  color: var(--c-muted);
  line-height: 1.6;
}

/* 提交成功提示 */
.form-success {
  display: none;
  grid-column: 1 / -1;
  padding: 14px 16px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--c-primary-deep);
  background: var(--c-bg);
  border: 1px solid var(--c-line-strong);
  border-left: 3px solid var(--c-success);
  border-radius: var(--radius-xs);
}

.form-success.is-visible {
  display: block;
}

/* 联系信息 */
.contact-aside {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-card {
  padding: 22px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}

.contact-card h3 {
  font-size: 14.5px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--c-line);
}

.contact-list li {
  display: flex;
  gap: 11px;
  padding: 9px 0;
  font-size: 13px;
  color: var(--c-text);
  line-height: 1.7;
  border-bottom: 1px dashed var(--c-line);
}

.contact-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.contact-list svg {
  flex: none;
  width: 16px;
  height: 16px;
  margin-top: 4px;
  color: var(--c-primary);
}

.contact-list span {
  display: block;
  font-size: 11.5px;
  color: var(--c-muted);
}

.contact-promise {
  padding: 20px 22px;
  background: var(--c-primary-deep);
  border-radius: var(--radius);
  color: #c3ced6;
}

.contact-promise h3 {
  color: #fff;
  font-size: 14.5px;
  margin-bottom: 10px;
}

.contact-promise li {
  position: relative;
  padding-left: 14px;
  font-size: 12.5px;
  line-height: 1.8;
  margin-bottom: 6px;
}

.contact-promise li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 4px;
  height: 4px;
  background: #8fa3b1;
  border-radius: 50%;
}

/* 到访路线 */
.visit-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 26px;
  align-items: center;
  padding: 24px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}

.visit-card figure {
  border: 1px solid var(--c-line);
  border-radius: var(--radius-xs);
  overflow: hidden;
  background: var(--c-bg);
}

.visit-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.visit-card h2 {
  font-size: 18px;
  margin-bottom: 8px;
}

.visit-card p {
  font-size: 13px;
  color: var(--c-muted);
  line-height: 1.85;
  margin-bottom: 10px;
}

/* 提示条（数据占位说明） */
.placeholder-note {
  display: block;
  font-size: 11px;
  color: #96a4ae;
  margin-top: 6px;
  letter-spacing: 0.02em;
}

/* ------------------------------ 灯箱 / 返回顶部 / Toast ------------------------------ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  place-items: center;
  padding: 40px 24px;
  background: rgba(20, 24, 27, 0.86);
}

.lightbox.is-open {
  display: grid;
}

.lightbox__figure {
  max-width: min(1100px, 94vw);
  max-height: 90vh;
  text-align: center;
}

.lightbox__figure img {
  max-width: 100%;
  max-height: calc(90vh - 60px);
  margin: 0 auto;
  background: #fff;
  border-radius: var(--radius-xs);
  box-shadow: var(--shadow-lg);
}

.lightbox__caption {
  margin-top: 12px;
  font-size: 12.5px;
  color: #c9d6df;
}

.lightbox__close {
  position: absolute;
  top: 20px;
  right: 24px;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  color: #e8eef2;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-xs);
  transition: background var(--t-fast);
}

.lightbox__close:hover {
  background: rgba(255, 255, 255, 0.18);
}

.lightbox__close svg {
  width: 18px;
  height: 18px;
}

.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 90;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  color: var(--c-primary-deep);
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--c-line-strong);
  border-radius: var(--radius-xs);
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity var(--t-fast), transform var(--t-fast),
    visibility var(--t-fast), background var(--t-fast);
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--c-bg);
}

.back-to-top svg {
  width: 16px;
  height: 16px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 34px;
  z-index: 210;
  max-width: min(520px, calc(100vw - 40px));
  padding: 11px 18px;
  font-size: 13px;
  line-height: 1.6;
  color: #eef3f7;
  background: rgba(30, 32, 34, 0.94);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-xs);
  box-shadow: var(--shadow-md);
  transform: translate(-50%, 8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--t-fast), transform var(--t-fast),
    visibility var(--t-fast);
}

.toast.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

/* ------------------------------ 响应式 ------------------------------ */
@media (max-width: 1180px) {
  .nav-link {
    padding: 0 11px;
    font-size: 14px;
  }

  .hero h1 {
    font-size: 38px;
  }

  .mega-inner {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px 26px;
  }

  .footer-main {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.8fr);
    gap: 36px 32px;
  }

  .detail-cols {
    grid-template-columns: 1fr;
  }

  /* 窄屏：适用场景改为单列，问答字号略降 */
  .detail-scenes {
    columns: 1;
  }

  .detail-faq dt {
    font-size: 14px;
  }

  .detail-faq dd {
    font-size: 13.5px;
  }
}

@media (max-width: 1024px) {
  :root {
    --header-h: 66px;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    bottom: 0;
    display: block;
    height: auto;
    padding: 10px 20px 28px;
    background: var(--c-surface);
    border-top: 1px solid var(--c-line);
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity var(--t-fast), transform var(--t-fast),
      visibility var(--t-fast);
  }

  body.nav-open .main-nav {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav-list {
    display: block;
    height: auto;
  }

  .nav-item {
    display: block;
    height: auto;
    border-bottom: 1px solid var(--c-line);
  }

  .nav-link {
    display: flex;
    justify-content: space-between;
    height: auto;
    padding: 14px 2px;
    font-size: 15px;
  }

  .nav-link::after {
    display: none;
  }

  .nav-item:hover .chev {
    transform: none;
  }

  .nav-item.is-open .chev {
    transform: rotate(180deg);
  }

  .nav-cta {
    display: flex;
    margin-top: 18px;
    width: 100%;
    height: 44px;
    font-size: 14px;
  }

  /* 移动端下拉转为折叠面板 */
  .mega-panel {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    display: none;
    box-shadow: none;
    border-top: 0;
    background: var(--c-bg-soft);
  }

  .nav-item.has-mega.is-open .mega-panel {
    display: block;
  }

  .mega-inner {
    display: block;
    padding: 8px 4px 12px;
  }

  .mega-col {
    padding: 8px 0;
    border-bottom: 1px dashed var(--c-line);
  }

  .mega-col:last-child {
    border-bottom: 0;
  }

  .mega-col h3 {
    border-bottom: 0;
    padding-bottom: 4px;
    margin-bottom: 2px;
    font-size: 13.5px;
  }

  .mega-col li a {
    padding: 5px 0 5px 10px;
  }

  .mega-foot {
    display: none;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-visual {
    max-width: 620px;
  }

  .hero-badge {
    left: 10px;
  }

  .feature-grid,
  .industry-grid,
  .capability-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .service-grid,
  .steps-grid,
  .process {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .process-step {
    border-bottom: 1px solid var(--c-line);
  }

  .process-step:nth-child(2n) {
    border-right: 0;
  }

  .process-step:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

  .about-split,
  .support-grid,
  .contact-layout,
  .app-block,
  .visit-card {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .app-block:nth-child(even) .app-block__media {
    order: 0;
  }

  .catalog-layout {
    grid-template-columns: 1fr;
  }

  .filter-panel {
    display: none;
  }

  .mobile-cat {
    display: block;
  }

  .detail-top {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .page-hero__aside {
    display: none;
  }

  .cta-band {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 18px;
  }

  .section {
    padding: 40px 0;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 22px;
  }

  .section-title {
    font-size: 24px;
    margin: 8px 0;
  }

  .hero {
    padding-top: calc(var(--header-h) + 32px);
    padding-bottom: 40px;
  }

  .hero h1 {
    font-size: 30px;
    line-height: 1.35;
  }

  .hero h1 .hero-title-sub {
    font-size: 18px;
  }

  .hero-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 0;
  }

  .hero-stat:nth-child(2) {
    border-right: 0;
  }

  .hero-stat:nth-child(n + 3) {
    padding-top: 12px;
    border-top: 1px solid var(--c-line);
  }

  .hero-badge {
    position: static;
    margin-top: 12px;
    border-left-width: 3px;
  }

  .hero-visual-tag {
    top: 20px;
    right: 20px;
  }

  .about-media__note {
    position: static;
    margin-top: 8px;
    right: auto;
    bottom: auto;
    display: inline-block;
  }

  .stats-band {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stats-band__item {
    padding: 20px 20px;
  }

  .stats-band__item strong {
    font-size: 28px;
  }

  .about-split .section-title {
    font-size: 26px;
  }

  .about-split p {
    font-size: 15px;
  }

  .about-points {
    gap: 12px 20px;
  }

  .about-points li {
    font-size: 14px;
  }

  .feature-grid,
  .industry-grid,
  .capability-grid,
  .service-grid,
  .steps-grid,
  .process,
  .quality-list {
    grid-template-columns: 1fr;
  }

  .process-step {
    border-right: 0;
    border-bottom: 1px solid var(--c-line);
    padding: 16px 18px;
  }

  .process-step:nth-last-child(-n + 2) {
    border-bottom: 1px solid var(--c-line);
  }

  .process-step:last-child {
    border-bottom: 0;
  }

  .cta-band {
    padding: 26px 22px;
  }

  .cta-band h2 {
    font-size: 20px;
  }

  .cta-band__actions .btn {
    width: 100%;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-top: 36px;
  }

  .footer-col:last-child {
    grid-column: auto;
  }

  .footer-bottom__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 16px 18px;
  }

  .page-hero {
    padding-top: calc(var(--header-h) + 32px);
    padding-bottom: 28px;
  }

  .page-hero h1 {
    font-size: 26px;
  }

  .catalog-toolbar {
    align-items: stretch;
  }

  .catalog-tools {
    width: 100%;
  }

  .search-box {
    flex: 1;
  }

  .search-box input {
    width: 100%;
  }

  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .product-body {
    padding: 12px 12px 13px;
  }

  .product-name {
    font-size: 14px;
  }

  .product-spec span {
    font-size: 10.5px;
  }

  .product-foot {
    font-size: 11.5px;
  }

  .form-card {
    padding: 20px 18px 22px;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .form-actions .btn {
    width: 100%;
  }

  .form-actions {
    gap: 10px;
  }

  .dimension-card {
    grid-template-columns: 1fr;
  }

  .doc-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .doc-card .btn {
    width: 100%;
  }

  .doc-card__main {
    width: 100%;
  }

  .detail-info h1 {
    font-size: 23px;
  }
}

@media (max-width: 520px) {
  .product-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    max-width: none;
  }

  .search-box input {
    font-size: 12.5px;
  }

  .key-specs {
    grid-template-columns: 1fr;
  }

  .back-to-top {
    right: 14px;
    bottom: 14px;
  }
}

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* ======================================================================
   首页改版（参考 Spacecom 首页的信息结构：全宽 Hero / Bento 系列 /
   横向型号卡片 / 场景图应用卡片）
   说明：仅首页使用的类，统一放在文件末尾，避免影响其他页面
   ====================================================================== */

/* ------------------------------ 全宽首屏 ------------------------------ */
.home-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--c-ink);
}

.home-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.home-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}

.home-hero__bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(680px 420px at 78% 36%, rgba(82, 97, 107, 0.55), transparent 70%);
}

.home-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(30, 32, 34, 0.96) 0%,
    rgba(30, 32, 34, 0.86) 48%,
    rgba(30, 32, 34, 0.58) 100%
  );
}

/* 细网格纹理，弱化占位图，增强工业感 */
.home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image: linear-gradient(rgba(201, 214, 223, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 214, 223, 0.055) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(90deg, #000 0%, transparent 88%);
  mask-image: linear-gradient(90deg, #000 0%, transparent 88%);
}

/* 右侧光学镜片圆环装饰 */
.home-hero::after {
  content: "";
  position: absolute;
  z-index: 1;
  top: 50%;
  right: -180px;
  width: 640px;
  height: 640px;
  transform: translateY(-50%);
  border: 1px solid rgba(201, 214, 223, 0.16);
  border-radius: 50%;
  box-shadow: 0 0 0 84px rgba(201, 214, 223, 0.035),
    0 0 0 168px rgba(201, 214, 223, 0.022);
  pointer-events: none;
}

.home-hero__inner {
  position: relative;
  z-index: 2;
  padding-top: calc(var(--header-h) + 92px);
  padding-bottom: 76px;
}

.home-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--c-line-strong);
}

.home-hero__eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--c-line-strong);
}

.home-hero h1 {
  margin: 18px 0 16px;
  font-size: 52px;
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: #fff;
}

.home-hero h1 span {
  display: block;
  margin-top: 8px;
  font-size: 25px;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--c-line-strong);
}

.home-hero__lead {
  max-width: 720px;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.78);
}

.home-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.home-hero__tags span {
  padding: 7px 14px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(201, 214, 223, 0.32);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  transition: border-color var(--t-fast), background var(--t-fast);
}

.home-hero__tags span:hover {
  border-color: rgba(201, 214, 223, 0.7);
  background: rgba(201, 214, 223, 0.12);
}

.home-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.home-hero__stats {
  display: flex;
  max-width: 660px;
  margin-top: 42px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.home-hero__stat {
  padding-right: 38px;
  margin-right: 38px;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
}

.home-hero__stat:last-child {
  padding-right: 0;
  margin-right: 0;
  border-right: 0;
}

.home-hero__stat strong {
  display: block;
  font-size: 27px;
  font-weight: 600;
  line-height: 1.15;
  color: #fff;
}

.home-hero__stat em {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  font-style: normal;
  color: rgba(255, 255, 255, 0.62);
}

/* ------------------------------ 产品系列 Bento ------------------------------ */
.series-bento {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 0.92fr);
  grid-template-rows: repeat(3, 208px);
  gap: 18px;
}

.series-card {
  position: relative;
  display: flex;
  overflow: hidden;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-ink);
  transition: border-color var(--t-fast), box-shadow var(--t-fast),
    transform var(--t-fast);
}

.series-card:hover {
  border-color: var(--c-line-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.series-card__media {
  position: absolute;
  inset: 0;
  background: var(--c-bg);
}

.series-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85);
  transition: transform var(--t-slow);
}

/* 占位图为纯色底时，用同心圆环补充光学镜片的视觉意象 */
.series-card__media::after {
  content: "";
  position: absolute;
  z-index: 1;
  right: -74px;
  bottom: -96px;
  width: 260px;
  height: 260px;
  border: 1px solid rgba(201, 214, 223, 0.34);
  border-radius: 50%;
  box-shadow: 0 0 0 40px rgba(201, 214, 223, 0.07),
    0 0 0 80px rgba(201, 214, 223, 0.04);
  pointer-events: none;
}

.series-card:hover .series-card__media img {
  transform: scale(1.04);
}

.series-card::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(30, 32, 34, 0.06) 0%,
    rgba(30, 32, 34, 0.5) 56%,
    rgba(30, 32, 34, 0.9) 100%
  );
}

.series-card__body {
  position: relative;
  z-index: 2;
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: flex-end;
  gap: 3px;
  padding: 18px 20px;
  color: #fff;
}

.series-card__en {
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.62);
}

.series-card__body strong {
  font-size: 19px;
  font-weight: 600;
  color: #fff;
}

.series-card__desc {
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.74);
}

.series-card__more {
  margin-top: 6px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--c-line-strong);
}

.series-card--zoom .series-card__body strong {
  font-size: 25px;
}

.series-card--zoom .series-card__desc {
  max-width: 460px;
  font-size: 13.5px;
}

/* Bento 位置：左区 2×2 大卡，右列 3 张竖卡，底行 2 张横卡 */
.series-card--zoom {
  grid-column: 1 / 3;
  grid-row: 1 / 3;
}

.series-card--spectral {
  grid-column: 3;
  grid-row: 1;
}

.series-card--special {
  grid-column: 3;
  grid-row: 2;
}

.series-card--motor {
  grid-column: 3;
  grid-row: 3;
}

.series-card--fa {
  grid-column: 1;
  grid-row: 3;
}

.series-card--board {
  grid-column: 2;
  grid-row: 3;
}

/* ------------------------------ 热门型号横向滚动 ------------------------------ */
.featured-scroll {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding: 4px 2px 8px;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--c-line-strong) transparent;
}

.featured-scroll > * {
  flex: 0 0 300px;
  scroll-snap-align: start;
}

.featured-scroll::-webkit-scrollbar {
  height: 8px;
}

.featured-scroll::-webkit-scrollbar-thumb {
  background: var(--c-line-strong);
  border-radius: 4px;
}

.featured-scroll::-webkit-scrollbar-track {
  background: var(--c-bg);
}

.scroll-hint {
  margin-top: 10px;
  font-size: 12px;
  text-align: right;
  color: var(--c-muted);
}

/* ------------------------------ 行业应用场景卡 ------------------------------ */
.app-tiles {
  display: grid;
  gap: 16px;
}

.app-row {
  display: grid;
  grid-template-columns: 1.68fr 1fr;
  gap: 16px;
}

.app-row--b {
  grid-template-columns: 1fr 1.68fr;
}

.app-tile {
  position: relative;
  display: block;
  min-height: 300px;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--c-ink);
  transition: box-shadow var(--t-fast), transform var(--t-fast);
}

.app-tile > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.75);
}

/* 占位图为纯色底时，用同心圆环补充场景感 */
.app-tile::before {
  content: "";
  position: absolute;
  z-index: 1;
  top: -84px;
  right: -72px;
  width: 240px;
  height: 240px;
  border: 1px solid rgba(82, 97, 107, 0.16);
  border-radius: 50%;
  box-shadow: 0 0 0 36px rgba(82, 97, 107, 0.05),
    0 0 0 72px rgba(82, 97, 107, 0.03);
  pointer-events: none;
}

.app-tile::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(
    0deg,
    rgba(30, 32, 34, 0.82) 0%,
    rgba(30, 32, 34, 0.28) 34%,
    rgba(30, 32, 34, 0) 62%
  );
}

.app-tile__label {
  position: absolute;
  left: 22px;
  bottom: 18px;
  z-index: 2;
  font-size: 23px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #fff;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
  transition: opacity var(--t-fast);
}

.app-tile__veil {
  position: absolute;
  inset: 0;
  z-index: 3;
  opacity: 0;
  background: var(--c-ink);
  transition: opacity var(--t-base);
}

.app-tile__panel {
  position: absolute;
  inset: 0;
  z-index: 4;
  display: flex;
  flex-direction: column;
  padding: 22px 24px;
  color: #fff;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--t-base), transform var(--t-base);
}

.app-tile__tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--c-line-strong);
}

.app-tile__panel strong {
  margin-top: 7px;
  font-size: 24px;
  font-weight: 600;
  color: #fff;
}

.app-tile__desc {
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.72;
  color: rgba(255, 255, 255, 0.8);
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.app-tile__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.app-tile__chips span {
  padding: 4px 10px;
  font-size: 12px;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.app-tile__go {
  margin-top: auto;
  padding-top: 12px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--c-line-strong);
}

/* 大卡标题放大，形成主次关系 */
.app-row > .app-tile:first-child .app-tile__label,
.app-row--b > .app-tile:last-child .app-tile__label {
  font-size: 27px;
}

.app-row > .app-tile:first-child .app-tile__panel strong,
.app-row--b > .app-tile:last-child .app-tile__panel strong {
  font-size: 26px;
}

/* 仅悬浮设备启用悬停展开，触屏直接显示说明 */
@media (hover: hover) {
  .app-tile:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
  }

  .app-tile:hover .app-tile__veil {
    opacity: 1;
  }

  .app-tile:hover .app-tile__panel {
    opacity: 1;
    transform: none;
  }

  .app-tile:hover .app-tile__label {
    opacity: 0.16;
  }
}

/* ------------------------------ 首页改版响应式 ------------------------------ */
@media (max-width: 1024px) {
  .series-bento {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: auto;
  }

  .series-card,
  .series-card--zoom,
  .series-card--spectral,
  .series-card--special,
  .series-card--motor,
  .series-card--fa,
  .series-card--board {
    grid-column: auto;
    grid-row: auto;
    min-height: 230px;
  }

  .series-card--zoom {
    grid-column: 1 / -1;
    min-height: 300px;
  }
}

@media (max-width: 860px) {
  .app-tile {
    min-height: 320px;
  }

  .app-tile__veil {
    opacity: 1;
  }

  .app-tile__panel {
    opacity: 1;
    transform: none;
  }

  .app-tile__label {
    opacity: 0.16;
  }
}

@media (max-width: 768px) {
  .home-hero__inner {
    padding-top: calc(var(--header-h) + 60px);
    padding-bottom: 54px;
  }

  .home-hero::after {
    right: -280px;
    width: 520px;
    height: 520px;
  }

  .home-hero h1 {
    font-size: 36px;
  }

  .home-hero h1 span {
    font-size: 18px;
  }

  .home-hero__lead {
    font-size: 14px;
  }

  .home-hero__tags {
    margin-top: 20px;
  }

  .home-hero__tags span {
    padding: 6px 12px;
    font-size: 12px;
  }

  .home-hero__actions {
    margin-top: 22px;
  }

  .home-hero__stats {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 0;
    margin-top: 30px;
    padding-top: 18px;
  }

  .home-hero__stat {
    margin-right: 0;
    padding-right: 16px;
  }

  .home-hero__stat:nth-child(2) {
    border-right: 0;
  }

  .series-bento {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .series-card,
  .series-card--zoom {
    grid-column: auto;
    min-height: 210px;
  }

  .app-row,
  .app-row--b {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .featured-scroll > * {
    flex: 0 0 262px;
  }

  .scroll-hint {
    text-align: left;
  }
}

@media (max-width: 520px) {
  .home-hero h1 {
    font-size: 30px;
  }

  .home-hero h1 span {
    font-size: 16px;
  }

  .home-hero__actions .btn {
    width: 100%;
  }

  .home-hero__stat strong {
    font-size: 23px;
  }

  .app-tile__panel {
    padding: 18px 18px;
  }

  .app-tile__panel strong,
  .app-row > .app-tile:first-child .app-tile__panel strong,
  .app-row--b > .app-tile:last-child .app-tile__panel strong {
    font-size: 21px;
  }

  .app-tile__label,
  .app-row > .app-tile:first-child .app-tile__label,
  .app-row--b > .app-tile:last-child .app-tile__label {
    font-size: 20px;
  }

  .featured-scroll > * {
    flex: 0 0 80vw;
  }
}

/* ==========================================================================
   模板视觉升级 · 参考 COOLENS 官网风格
   浅底大留白 + 深色影像区 + 工业绿点缀；以下规则统一覆盖原灰蓝主题
   ========================================================================== */

:root {
  /* 品牌配色：工业绿 + 中性灰 */
  --c-bg: #f5f5f5;
  --c-bg-soft: #fafafa;
  --c-line: #e6e6e6;
  --c-line-strong: #d6d6d6;
  --c-primary: #26a65c;
  --c-primary-dark: #1f8a4c;
  --c-primary-deep: #205f33;
  --c-ink: #222626;
  --c-text: #4a4f4f;
  --c-muted: #7b7b7b;
  --c-success: #26a65c;
  --radius-xs: 2px;
  --radius-sm: 2px;
  --radius: 2px;
  --radius-lg: 2px;
  --header-h: 84px;
  --container: 1280px;
}

/* ------------------------------ 顶部导航 ------------------------------ */
.site-header {
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid var(--c-line);
}

.brand-mark {
  border-radius: 0;
  background: none;
}

.brand-text strong {
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.brand-text em {
  color: var(--c-primary);
  letter-spacing: 0.22em;
}

@media (min-width: 1025px) {
  .header-inner {
    justify-content: flex-start;
  }

  .main-nav {
    flex: 1;
    margin-left: 54px;
  }

  .nav-cta {
    margin-left: auto;
    border-radius: 0;
    height: 40px;
    padding: 0 22px;
  }

  .nav-link {
    padding: 0 18px;
    font-size: 16.5px;
    color: #3f4444;
    white-space: nowrap;
  }

  .nav-link::after {
    left: 18px;
    right: 18px;
    height: 2px;
  }
}

/* 首页透明导航，滚动后转为白底 */
body[data-page="home"] .site-header {
  background: transparent;
  border-bottom-color: rgba(255, 255, 255, 0.14);
}

body[data-page="home"] .site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.98);
  border-bottom-color: var(--c-line);
}

body[data-page="home"] .site-header:not(.is-scrolled) .brand-text strong {
  color: #fff;
}

body[data-page="home"] .site-header:not(.is-scrolled) .brand-text em {
  color: rgba(255, 255, 255, 0.55);
}

body[data-page="home"] .site-header:not(.is-scrolled) .nav-link {
  color: rgba(255, 255, 255, 0.78);
}

body[data-page="home"] .site-header:not(.is-scrolled) .nav-link:hover,
body[data-page="home"] .site-header:not(.is-scrolled) .nav-item.is-active > .nav-link {
  color: #fff;
}

body[data-page="home"] .site-header:not(.is-scrolled) .nav-cta {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.45);
  color: #fff;
}

body[data-page="home"] .site-header:not(.is-scrolled) .nav-cta:hover {
  background: var(--c-primary);
  border-color: var(--c-primary);
}

body[data-page="home"] .site-header:not(.is-scrolled) .nav-toggle span {
  background: #fff;
}

/* ------------------------------ 首屏 Hero ------------------------------ */
.cool-hero {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 100vh;
  height: 100vh;
  max-height: none;
  padding-top: var(--header-h);
  background: #121617;
  color: #fff;
  overflow: hidden;
}

.cool-hero__bg {
  position: absolute;
  inset: 0;
  background:
    /* 左侧压暗，保证白色标题与描述的可读性 */
    linear-gradient(90deg, rgba(12, 16, 17, 0.88) 0%, rgba(12, 16, 17, 0.6) 34%, rgba(12, 16, 17, 0.16) 60%, rgba(12, 16, 17, 0) 78%),
    /* 实景背景图：光圈同心圆位于画面右侧 */
    url("../images/web/hero-bg-opt.jpg") right center / cover no-repeat,
    radial-gradient(85% 75% at 78% 32%, #3d4a4d 0%, #232a2c 42%, #101415 100%);
}

.cool-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 84px 84px;
  -webkit-mask-image: radial-gradient(75% 75% at 55% 42%, #000 10%, transparent 82%);
  mask-image: radial-gradient(75% 75% at 55% 42%, #000 10%, transparent 82%);
}

.cool-hero__glow {
  position: absolute;
  top: 26%;
  right: 10%;
  width: 460px;
  height: 460px;
  background: radial-gradient(circle, rgba(38, 166, 92, 0.3), transparent 68%);
  filter: blur(18px);
}

.cool-hero__art {
  position: absolute;
  top: 46%;
  right: 3%;
  width: min(620px, 46vw);
  transform: translateY(-50%);
  color: rgba(255, 255, 255, 0.5);
  opacity: 0.5;
}

.cool-hero__inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: center;
  padding-top: 50px;
  padding-bottom: 26px;
}

.cool-hero__eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3em;
  color: #8ac452;
  text-transform: uppercase;
}

.cool-hero h1 {
  max-width: 820px;
  margin: 20px 0 0;
  font-size: clamp(38px, 4.4vw, 58px);
  font-weight: 300;
  line-height: 1.24;
  letter-spacing: 0.01em;
  color: #fff;
}

.cool-hero h1 em {
  display: block;
  margin-top: 6px;
  font-style: normal;
  font-weight: 300;
  color: #cfd8d2;
}

.cool-hero__lead {
  max-width: 640px;
  margin: 24px 0 0;
  font-size: 15px;
  line-height: 1.95;
  color: rgba(255, 255, 255, 0.7);
}

.cool-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.btn-green,
.btn-ghost-light {
  border-radius: 0;
  height: 44px;
  padding: 0 26px;
  font-size: 14px;
}

.btn-green {
  background: var(--c-primary);
  color: #fff;
}

.btn-green:hover {
  background: var(--c-primary-dark);
  color: #fff;
}

.btn-ghost-light {
  border: 1px solid rgba(255, 255, 255, 0.45);
  color: #fff;
  background: transparent;
}

.btn-ghost-light:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

/* 玻璃分类卡 */
.cool-hero__cards {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  background: rgba(18, 22, 23, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.12);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.cool-hero__card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 132px;
  padding: 22px 16px;
  border-right: 1px solid rgba(255, 255, 255, 0.12);
  text-align: center;
  transition: background var(--t);
}

.cool-hero__card:last-child {
  border-right: 0;
}

.cool-hero__card:hover {
  background: rgba(38, 166, 92, 0.16);
}

.cool-hero__icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  color: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 50%;
  transition: border-color var(--t), color var(--t);
}

.cool-hero__card:hover .cool-hero__icon {
  color: #8ac452;
  border-color: rgba(138, 196, 82, 0.6);
}

.cool-hero__icon svg {
  width: 26px;
  height: 26px;
}

.cool-hero__card strong {
  font-size: 15px;
  font-weight: 500;
  color: #fff;
}

.cool-hero__card em {
  font-size: 9px;
  font-style: normal;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.45);
}

.cool-hero__scroll {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 9px;
  letter-spacing: 0.3em;
  color: rgba(255, 255, 255, 0.5);
}

.cool-hero__scroll span {
  display: block;
  width: 1px;
  height: 42px;
  background: rgba(255, 255, 255, 0.35);
}

/* ------------------------------ 快捷服务入口 ------------------------------ */
.cool-links {
  background: #fff;
  border-bottom: 1px solid var(--c-line);
}

.cool-links__row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.cool-links__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 9px;
  padding: 52px 20px;
  border-right: 1px solid var(--c-line);
  text-align: center;
  transition: background var(--t);
}

.cool-links__item:last-child {
  border-right: 0;
}

.cool-links__item:hover {
  background: #f8f8f8;
}

.cool-links__icon {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  margin-bottom: 6px;
  color: var(--c-primary);
}

.cool-links__icon svg {
  width: 36px;
  height: 36px;
}

.cool-links__item strong {
  font-size: 16px;
  font-weight: 500;
  color: var(--c-ink);
}

.cool-links__item em {
  font-size: 13px;
  font-style: normal;
  color: var(--c-muted);
}

.cool-links__item:hover strong {
  color: var(--c-primary);
}

/* ------------------------------ 深色产品线区 ------------------------------ */
.cool-series {
  position: relative;
  padding: 96px 0;
  /* 深色底 + 可切换的背景图层（.cool-series__bg） */
  background: #1b2021;
  color: #fff;
  /* 这里不裁剪纵向内容，避免小屏时文字被切掉；
     背景层的 scale 溢出改由 .cool-series__bg 自行裁剪 */
  overflow: visible;
}

.cool-series__grid {
  display: grid;
  grid-template-columns: minmax(0, 600px);
  gap: 0;
  align-items: center;
  justify-content: start;
}

.cool-series__media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: #333b3d;
}

.cool-series__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.92;
}

.cool-series__media::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -90px;
  width: 300px;
  height: 300px;
  border: 1px solid rgba(38, 166, 92, 0.55);
  border-radius: 50%;
  box-shadow: 0 0 0 46px rgba(38, 166, 92, 0.12),
    0 0 0 92px rgba(38, 166, 92, 0.07);
  z-index: 1;
  pointer-events: none;
}

.cool-series__badge {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  padding: 9px 16px;
  background: var(--c-primary);
  color: #fff;
  font-size: 10px;
  letter-spacing: 0.22em;
}

.eyebrow--light {
  color: #8ac452;
}

.eyebrow--light::before {
  background: #8ac452;
}

.cool-series__panel h2 {
  margin: 18px 0 16px;
  font-size: 42px;
  font-weight: 300;
  line-height: 1.35;
  color: #fff;
}

.cool-series__panel > p {
  max-width: 580px;
  margin: 0 0 30px;
  font-size: 16.5px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.58);
}

.cool-series__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.cool-series__list a {
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr) 26px;
  grid-template-rows: auto auto auto;
  align-items: center;
  padding: 15px 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  transition: background var(--t);
}

/* 五位子元素：序号 / 标题 / 参数 / 详细文案 / 箭头 */
.cool-series__list a > span {
  grid-column: 1;
  grid-row: 1 / span 3;
}

.cool-series__list a > strong {
  grid-column: 2;
  grid-row: 1;
}

.cool-series__list a > em {
  grid-column: 2;
  grid-row: 2;
}

.cool-series__list a > i {
  grid-column: 3;
  grid-row: 1 / span 3;
  justify-self: end;
}

/* 每个产品线的详细说明，跟随标题列 */
.cool-series__list .cool-series__desc {
  grid-column: 2;
  grid-row: 3;
  display: -webkit-box;
  max-width: 620px;
  margin-top: 8px;
  font-size: 15px;
  font-weight: 400;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.5);
  /* 与右侧图区齐平：最多两行，超出以省略号收尾，避免末条被裁切 */
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.cool-series__list li:last-child a {
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.cool-series__list a:hover {
  background: rgba(255, 255, 255, 0.05);
}

.cool-series__list span {
  font-size: 30px;
  font-weight: 300;
  line-height: 1;
  letter-spacing: 0.02em;
  color: #8ac452;
}

.cool-series__list strong {
  display: block;
  font-size: 19.5px;
  font-weight: 500;
  color: #fff;
  transition: color var(--t);
}

.cool-series__list em {
  display: block;
  margin-top: 5px;
  font-size: 14.5px;
  font-style: normal;
  color: rgba(255, 255, 255, 0.52);
}

.cool-series__list i {
  font-style: normal;
  color: rgba(255, 255, 255, 0.35);
  transition: transform var(--t), color var(--t);
}

.cool-series__list a:hover strong {
  color: #8ac452;
}

.cool-series__list a:hover i {
  transform: translateX(4px);
  color: #8ac452;
}

/* 五大产品线：滚动进入视口后逐条淡入上移（不加额外花哨效果） */
.cool-series__panel > .eyebrow,
.cool-series__panel > h2,
.cool-series__panel > p,
.cool-series__list li,
.cool-series__media {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.cool-series__media {
  transform: translateY(18px) scale(0.985);
}

.cool-series.is-revealed .cool-series__panel > .eyebrow,
.cool-series.is-revealed .cool-series__panel > h2,
.cool-series.is-revealed .cool-series__panel > p,
.cool-series.is-revealed .cool-series__list li,
.cool-series.is-revealed .cool-series__media {
  opacity: 1;
  transform: none;
}

.cool-series.is-revealed .cool-series__panel > .eyebrow { transition-delay: 0.02s; }
.cool-series.is-revealed .cool-series__panel > h2 { transition-delay: 0.1s; }
.cool-series.is-revealed .cool-series__panel > p { transition-delay: 0.2s; }
.cool-series.is-revealed .cool-series__list li:nth-child(1) { transition-delay: 0.3s; }
.cool-series.is-revealed .cool-series__list li:nth-child(2) { transition-delay: 0.44s; }
.cool-series.is-revealed .cool-series__list li:nth-child(3) { transition-delay: 0.58s; }
.cool-series.is-revealed .cool-series__list li:nth-child(4) { transition-delay: 0.72s; }
.cool-series.is-revealed .cool-series__list li:nth-child(5) { transition-delay: 0.86s; }
.cool-series.is-revealed .cool-series__media { transition-delay: 0.1s; }

/* 每条产品线单独从左侧滑入，逐条错开出现 */
.cool-series__list li {
  transform: translateX(-42px);
  transition: opacity 0.7s cubic-bezier(0.22, 0.61, 0.36, 1),
    transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.cool-series.is-revealed .cool-series__list li {
  transform: none;
}

/* 用户系统开启“减少动态效果”时直接显示 */
@media (prefers-reduced-motion: reduce) {
  .cool-series__panel > .eyebrow,
  .cool-series__panel > h2,
  .cool-series__panel > p,
  .cool-series__list li,
  .cool-series__media {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ------------------------------ 企业实力 ------------------------------ */
.cool-brand {
  padding: 108px 0;
  background: #fff;
}

/* 企业实力模块：容器比默认更宽，图片与文字整体放大 */
.cool-brand .container {
  max-width: 1360px;
}

.cool-brand__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
  gap: 70px;
  align-items: center;
}

.cool-brand__media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 11 / 9;
  background: #f0f2f2;
}

.cool-brand__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cool-brand__media::after {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(38, 166, 92, 0.35);
  border-radius: 50%;
  box-shadow: 0 0 0 36px rgba(38, 166, 92, 0.06);
  pointer-events: none;
}

.cool-brand__text h2 {
  margin: 16px 0 20px;
  font-size: 40px;
  font-weight: 300;
  line-height: 1.4;
  color: var(--c-ink);
}

.cool-brand__text > p {
  max-width: 660px;
  margin: 0 0 24px;
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--c-text);
}

.cool-brand__points {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 24px;
  margin: 0 0 30px;
  padding: 0;
  list-style: none;
}

.cool-brand__points li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--c-text);
}

.cool-brand__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--c-primary);
}

.cool-brand__stats {
  display: flex;
  gap: 52px;
  padding: 24px 0;
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}

.cool-brand__stats strong {
  display: block;
  font-size: 50px;
  font-weight: 300;
  line-height: 1;
  color: var(--c-primary);
}

.cool-brand__stats small {
  font-size: 15px;
  margin-left: 2px;
}

.cool-brand__stats span {
  display: block;
  margin-top: 9px;
  font-size: 13px;
  color: var(--c-muted);
}

.cool-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 26px;
  font-size: 13px;
  color: var(--c-primary);
  border-bottom: 1px solid rgba(38, 166, 92, 0.4);
  padding-bottom: 3px;
}

.cool-more:hover {
  color: var(--c-ink);
  border-color: var(--c-ink);
}

/* ------------------------------ 内容区块基础节奏 ------------------------------ */
.section {
  padding: 72px 0;
}

.section-title {
  font-weight: 400;
}

.section-more {
  color: var(--c-primary);
}

/* 技术优势：轻量列表化 */
.feature-card {
  background: transparent;
  border: 0;
  border-top: 1px solid var(--c-line);
  border-radius: 0;
  padding: 24px 0 8px;
  box-shadow: none;
}

.feature-card:hover {
  transform: none;
  box-shadow: none;
  border-top-color: var(--c-primary);
}

.feature-icon {
  color: var(--c-primary);
}

.feature-card h3 {
  font-weight: 500;
}

/* 热门产品：编号横向卡片 */
.featured-scroll {
  display: flex;
  gap: 26px;
  overflow-x: auto;
  padding-bottom: 18px;
  scroll-snap-type: x mandatory;
  counter-reset: feat;
}

.featured-scroll .product-card {
  flex: 0 0 300px;
  scroll-snap-align: start;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  padding: 0;
}

.featured-scroll .product-card::before {
  counter-increment: feat;
  content: "0" counter(feat);
  display: block;
  margin-bottom: 10px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-muted);
}

.featured-scroll .product-card:hover {
  transform: none;
  box-shadow: none;
}

.featured-scroll .product-media {
  background: #f2f2f2;
  aspect-ratio: 4 / 3;
}

.featured-scroll .product-body {
  padding: 16px 0 0;
}

.featured-scroll .product-cat {
  top: 10px;
  left: 10px;
  padding: 5px 9px;
  border-radius: 0;
  background: rgba(255, 255, 255, 0.9);
  color: var(--c-primary);
  font-size: 10px;
}

.featured-scroll .link-detail,
.featured-scroll .link-inquire {
  color: var(--c-primary);
}

/* 行业应用：压低装饰，突出影像 */
.app-tile__tag {
  color: #8ac452;
}

.app-tile__go {
  color: #8ac452;
}

/* 技术服务：细线卡片 */
.service-item {
  background: transparent;
  border: 0;
  border-top: 1px solid var(--c-line);
  border-radius: 0;
  box-shadow: none;
  padding: 22px 0 6px;
}

.service-item:hover {
  transform: none;
  box-shadow: none;
  border-top-color: var(--c-primary);
}

.service-item__icon {
  color: var(--c-primary);
}

.process-step {
  border-radius: 0;
}

/* ------------------------------ 技术资讯 ------------------------------ */
.cool-news {
  background: #fff;
  border-top: 1px solid var(--c-line);
}

.cool-news__grid {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  align-items: stretch;
}

.cool-news__label {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  padding: 28px 30px;
  background: var(--c-primary);
  color: #fff;
}

.cool-news__label strong {
  font-size: 30px;
  font-weight: 300;
  letter-spacing: 0.1em;
}

.cool-news__label span {
  font-size: 12px;
  letter-spacing: 0.24em;
  color: rgba(255, 255, 255, 0.75);
}

.cool-news__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.cool-news__item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 22px 46px 22px 26px;
  border-left: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}

.cool-news__item:nth-child(-n + 2) {
  border-bottom: 1px solid var(--c-line);
}

.cool-news__item:nth-child(2n) {
  border-right: 0;
}

.cool-news__meta {
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--c-primary);
}

.cool-news__title {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--c-ink);
  transition: color var(--t);
}

.cool-news__arrow {
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--c-muted);
  transition: transform var(--t), color var(--t);
}

.cool-news__item:hover .cool-news__title {
  color: var(--c-primary);
}

.cool-news__item:hover .cool-news__arrow {
  color: var(--c-primary);
  transform: translateY(-50%) translateX(4px);
}

/* ------------------------------ 询价 CTA ------------------------------ */
.cta-band {
  border-radius: 0;
  background: #202425;
  padding: 54px 56px;
}

.cta-band h2 {
  font-weight: 300;
}

.cta-band .btn {
  border-radius: 0;
}

/* ------------------------------ 页脚 ------------------------------ */
.site-footer {
  background: #f5f5f5;
  border-top: 1px solid var(--c-line);
  color: var(--c-text);
}

.footer-brand .brand-text strong {
  color: var(--c-ink);
}

.footer-brand .brand-text em {
  color: var(--c-muted);
}

.footer-slogan {
  color: var(--c-text);
}

.footer-desc {
  color: var(--c-muted);
}

.footer-col h3 {
  color: var(--c-ink);
}

.footer-col ul li a {
  color: var(--c-text);
}

.footer-col ul li a:hover {
  color: var(--c-primary);
}

.footer-contact li {
  color: var(--c-muted);
}

.footer-contact svg {
  color: var(--c-primary);
}

.footer-contact strong {
  color: var(--c-ink);
}

.footer-bottom {
  border-top: 1px solid var(--c-line);
}

.footer-bottom__inner {
  color: var(--c-muted);
}

.footer-bottom__links a:hover {
  color: var(--c-primary);
}

/* ------------------------------ 响应式 ------------------------------ */
@media (max-width: 1180px) {
  .cool-series__grid,
  .cool-brand__grid {
    gap: 44px;
  }

  .cool-brand__stats {
    gap: 38px;
  }
}

@media (max-width: 1024px) {
  .cool-hero {
    height: auto;
    min-height: 0;
    padding-top: calc(var(--header-h) + 70px);
    padding-bottom: 0;
  }

  .cool-hero__art {
    width: min(480px, 60vw);
    opacity: 0.32;
  }

  .cool-hero__inner {
    padding-top: 20px;
    padding-bottom: 40px;
  }

  .cool-hero__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cool-hero__card {
    min-height: 118px;
  }

  .cool-hero__card:nth-child(2) {
    border-right: 0;
  }

  .cool-hero__card:nth-child(-n + 2) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  }

  .cool-series {
    padding: 64px 0;
  }

  .cool-series__grid,
  .cool-brand__grid {
    grid-template-columns: 1fr;
  }

  .cool-series__media {
    max-width: 720px;
  }

  .cool-series__panel h2,
  .cool-brand__text h2 {
    font-size: 30px;
  }

  .cool-brand {
    padding: 64px 0;
  }

  .cool-brand__media {
    max-width: 640px;
  }

  .cool-news__grid {
    grid-template-columns: 200px minmax(0, 1fr);
  }

  .cool-news__label strong {
    font-size: 26px;
  }
}

@media (max-width: 768px) {
  .cool-hero {
    padding-top: calc(var(--header-h) + 46px);
  }

  .cool-hero h1 {
    font-size: 34px;
  }

  .cool-hero__lead {
    font-size: 14px;
    line-height: 1.85;
  }

  .cool-hero__actions .btn {
    flex: 1 1 auto;
    justify-content: center;
  }

  .cool-hero__art {
    top: 30%;
    right: -18%;
    width: 70vw;
    opacity: 0.22;
  }

  .cool-hero__glow {
    top: 10%;
    right: -20%;
    width: 320px;
    height: 320px;
  }

  .cool-links__row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cool-links__item {
    padding: 24px 16px;
  }

  .cool-links__item:nth-child(2n) {
    border-right: 0;
  }

  .cool-links__item:nth-child(-n + 2) {
    border-bottom: 1px solid var(--c-line);
  }

  .cool-links__item em {
    font-size: 11.5px;
  }

  .cool-series {
    padding: 52px 0;
  }

  .cool-series__panel h2,
  .cool-brand__text h2 {
    font-size: 26px;
  }

  .cool-brand {
    padding: 52px 0;
  }

  .cool-brand__points {
    grid-template-columns: 1fr;
  }

  .cool-brand__stats {
    gap: 26px;
  }

  .cool-brand__stats strong {
    font-size: 34px;
  }

  .cool-news__grid {
    grid-template-columns: 1fr;
  }

  .cool-news__label {
    flex-direction: row;
    align-items: baseline;
    justify-content: flex-start;
    gap: 12px;
    padding: 18px 22px;
  }

  .cool-news__list {
    grid-template-columns: 1fr;
  }

  .cool-news__item {
    border-left: 0;
  }

  .cool-news__item:nth-child(-n + 2) {
    border-bottom: 1px solid var(--c-line);
  }

  .section {
    padding: 52px 0;
  }

  .featured-scroll .product-card {
    flex: 0 0 262px;
  }

  .cta-band {
    padding: 36px 26px;
  }
}

@media (max-width: 520px) {
  .cool-hero h1 {
    font-size: 29px;
    line-height: 1.32;
  }

  .cool-hero__eyebrow {
    font-size: 9.5px;
    letter-spacing: 0.22em;
  }

  .cool-hero__lead {
    margin-top: 18px;
  }

  .cool-hero__actions {
    flex-direction: column;
  }

  .cool-hero__actions .btn {
    width: 100%;
  }

  .cool-hero__card {
    min-height: 106px;
    padding: 18px 10px;
  }

  .cool-hero__icon {
    width: 38px;
    height: 38px;
  }

  .cool-hero__icon svg {
    width: 22px;
    height: 22px;
  }

  .cool-hero__card strong {
    font-size: 13.5px;
  }

  .cool-hero__scroll {
    font-size: 8px;
  }

  .cool-hero__scroll span {
    height: 30px;
  }

  .cool-links__item {
    padding: 20px 12px;
  }

  .cool-links__item strong {
    font-size: 14px;
  }

  .cool-links__item em {
    font-size: 11px;
  }

  .cool-series__panel h2,
  .cool-brand__text h2 {
    font-size: 23px;
  }

  .cool-series__list a {
    grid-template-columns: 56px minmax(0, 1fr) 20px;
    padding: 12px 6px;
  }

  .cool-series__list span {
    font-size: 22px;
  }

  .cool-series__list strong {
    font-size: 15px;
  }

  .cool-series__list em {
    font-size: 11px;
  }

  .cool-brand__stats {
    flex-wrap: wrap;
    gap: 20px 30px;
  }

  .featured-scroll .product-card {
    flex: 0 0 80vw;
  }

  .cool-news__item {
    padding: 18px 40px 18px 20px;
  }
}

/* ==========================================================================
   产品中心 · 参考 COOLENS 产品列表页
   深色影像带 + 浮动白色分类卡 + 参数对照表格
   ========================================================================== */

/* ------------------------------ 页面头部 ------------------------------ */
.catalog-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 52px) 0 64px;
  background: #161b1c;
  color: #fff;
}

.catalog-hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* 右侧实景图：镜头产品照片，左侧渐隐入深底 */
.catalog-hero__photo {
  position: absolute;
  top: 0;
  right: 0;
  width: 60%;
  height: 100%;
  background: url("../images/web/categories/zoom-manual.jpg") center right / cover no-repeat;
  opacity: 0.92;
  filter: saturate(0.85) brightness(0.92) contrast(1.02);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, rgba(0, 0, 0, 0.55) 28%, #000 52%);
  mask-image: linear-gradient(to right, transparent 0%, rgba(0, 0, 0, 0.55) 28%, #000 52%);
}

/* 底部渐变，与下方白色列表平滑过渡 */
.catalog-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to right, #161b1c 16%, rgba(22, 27, 28, 0.68) 40%, rgba(22, 27, 28, 0.12) 68%),
    linear-gradient(to bottom, rgba(22, 27, 28, 0.05), rgba(22, 27, 28, 0.55));
}

.catalog-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 88px 88px;
  -webkit-mask-image: linear-gradient(to right, rgba(0, 0, 0, 0.8), transparent 62%);
  mask-image: linear-gradient(to right, rgba(0, 0, 0, 0.8), transparent 62%);
}

.catalog-hero__glow {
  position: absolute;
  right: -4%;
  top: -32%;
  width: 720px;
  height: 720px;
  background: radial-gradient(circle, rgba(38, 166, 92, 0.22), transparent 62%);
}

.catalog-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 980px;
}

.catalog-hero .breadcrumb {
  margin-bottom: 24px;
}

.catalog-hero .breadcrumb li {
  color: rgba(255, 255, 255, 0.45);
}

.catalog-hero .breadcrumb li a {
  color: rgba(255, 255, 255, 0.7);
}

.catalog-hero .breadcrumb a:hover {
  color: #8ac452;
}

.catalog-hero .breadcrumb li::after {
  color: rgba(255, 255, 255, 0.28);
}

.catalog-hero .breadcrumb li:last-child {
  color: #fff;
}

.catalog-hero h1 {
  margin: 12px 0 14px;
  font-size: clamp(30px, 3.2vw, 44px);
  font-weight: 300;
  line-height: 1.28;
  letter-spacing: 0.02em;
  color: #fff;
}

.catalog-hero p {
  max-width: 640px;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.62);
}

/* 产品线快速入口 */
.catalog-hero__lines {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.catalog-hero__lines a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-xs);
  background: rgba(255, 255, 255, 0.05);
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.catalog-hero__lines a:hover {
  color: #fff;
  border-color: rgba(138, 196, 82, 0.6);
  background: rgba(38, 166, 92, 0.16);
}

.catalog-hero__lines b {
  font-size: 12.5px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.45);
}

/* 关键数据 */
.catalog-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-top: 34px;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.catalog-hero__stats li {
  min-width: 140px;
  padding-right: 32px;
  margin-right: 32px;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.catalog-hero__stats li:last-child {
  border-right: 0;
  margin-right: 0;
  padding-right: 0;
}

.catalog-hero__stats strong {
  display: block;
  font-size: 30px;
  font-weight: 400;
  line-height: 1.1;
  color: #fff;
  letter-spacing: 0.01em;
}

.catalog-hero__stats span {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

/* ------------------------------ 列表布局 ------------------------------ */
.catalog-section {
  padding: 46px 0 84px;
  background: #fff;
}

.catalog-layout {
  grid-template-columns: 256px minmax(0, 1fr);
  gap: 36px;
}

/* 侧栏：上浮白色卡片，压住影像带底部 */
.catalog-side {
  position: sticky;
  top: calc(var(--header-h) + 22px);
  align-self: start;
  margin-top: -64px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.catalog-side__card {
  background: #fff;
  border: 1px solid var(--c-line);
  box-shadow: 0 20px 44px rgba(20, 24, 24, 0.1);
}

.catalog-side__head {
  padding: 24px 22px 18px;
  border-bottom: 1px solid var(--c-line);
}

.catalog-side__head strong {
  display: block;
  font-size: 21px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--c-primary);
}

.catalog-side__head span {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: #b4bab9;
}

.cat-tree {
  padding: 14px;
  max-height: none;
  overflow: visible;
}

.cat-tree__all {
  height: 46px;
  padding: 0 16px;
  margin-bottom: 10px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: 0;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--c-ink);
}

.cat-tree__all b {
  font-size: 11px;
  font-weight: 400;
  color: var(--c-muted);
}

.cat-tree__all:hover {
  background: #f5f5f5;
  color: var(--c-primary);
}

.cat-tree__all.is-active {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: #fff;
}

.cat-tree__all.is-active b {
  color: rgba(255, 255, 255, 0.75);
}

.cat-group {
  padding: 0;
  border-top: 1px solid #ededed;
}

.cat-group:first-of-type {
  border-top: 0;
}

.cat-group__title {
  height: 46px;
  padding: 0 6px 0 16px;
  gap: 8px;
  border-radius: 0;
  font-size: 13px;
  font-weight: 500;
  color: var(--c-ink);
}

.cat-group__name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cat-group__title b {
  font-size: 11px;
  font-weight: 400;
  color: #9aa0a0;
}

.cat-group__title:hover {
  color: var(--c-primary);
  background: #f7f7f7;
}

.cat-group__title.is-active {
  color: var(--c-primary);
  background: transparent;
}

.cat-group__title.is-active b {
  color: var(--c-primary);
}

.cat-group__chev {
  flex: none;
  width: 10px;
  height: 6px;
  color: #9aa0a0;
  transform: rotate(-90deg);
  transition: transform 0.18s ease;
}

.cat-group.is-open .cat-group__chev {
  transform: rotate(0deg);
}

.cat-group ul {
  display: none;
  padding: 0 0 10px;
}

.cat-group.is-open ul {
  display: block;
}

.cat-group ul a {
  padding: 8px 14px 8px 22px;
  font-size: 12.5px;
  color: var(--c-muted);
  border-left: 2px solid transparent;
  border-radius: 0;
}

.cat-group ul a:hover {
  color: var(--c-primary);
  background: #f7f7f7;
}

.cat-group ul a.is-active {
  color: var(--c-primary-deep);
  background: #f5f5f5;
  border-left-color: var(--c-primary);
  box-shadow: none;
  font-weight: 600;
}

/* 侧栏帮助入口 */
.catalog-side__help {
  padding: 20px 18px 16px;
  background: #f5f5f5;
}

.catalog-side__help h3 {
  margin-bottom: 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-ink);
}

.catalog-side__help a {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 0;
  font-size: 12.5px;
  color: var(--c-text);
}

.catalog-side__help a svg {
  width: 15px;
  height: 15px;
  color: var(--c-primary);
}

.catalog-side__help a:hover {
  color: var(--c-primary);
}

/* ------------------------------ 列表主区域 ------------------------------ */
.catalog-titlebar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 26px;
  padding-bottom: 22px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--c-line);
}

.catalog-titlebar__main h2 {
  margin-bottom: 8px;
  font-size: 27px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--c-primary);
}

.catalog-titlebar p {
  max-width: 640px;
  font-size: 13px;
  line-height: 1.85;
  color: var(--c-muted);
}

/* 二级分类介绍：文案（与下方列表左对齐）+ 右侧图片占位 */
.cat-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 400px);
  gap: 40px;
  align-items: center;
  margin-bottom: 20px;
  padding: 0;
}

.cat-intro[hidden] {
  display: none;
}

.cat-intro__media {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 9;
  background: #eef2f4;
  border: 1px dashed rgba(40, 40, 40, 0.18);
  overflow: hidden;
}

.cat-intro__ph {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: #96a4ae;
}

.cat-intro__media img {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cat-intro__body p {
  max-width: 760px;
  font-size: 16px;
  line-height: 1.95;
  color: var(--c-text);
}

@media (max-width: 768px) {
  .cat-intro {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .cat-intro__body p {
    font-size: 14.5px;
    line-height: 1.9;
  }
}

/* 搜索 + 排序工具条（搜索框整行，右侧绿色放大镜） */
.catalog-toolbar {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  padding: 0;
  margin-bottom: 18px;
  border-bottom: 0;
}

.catalog-toolbar .search-box {
  flex: 1;
  min-width: 260px;
}

.catalog-toolbar .search-box input {
  width: 100%;
  height: 44px;
  padding: 0 42px 0 14px;
  font-size: 13px;
  border: 1px solid var(--c-line-strong);
  border-radius: 0;
}

.catalog-toolbar .search-box input::placeholder {
  color: #9aa0a0;
}

.catalog-toolbar .search-box input:focus {
  border-color: var(--c-primary);
  box-shadow: none;
}

.catalog-toolbar .search-box svg {
  left: auto;
  right: 14px;
  width: 16px;
  height: 16px;
  color: var(--c-primary);
}

.catalog-tools {
  gap: 14px;
}

.catalog-toolbar .sort-box {
  height: 44px;
  padding: 0 10px;
  border: 1px solid var(--c-line-strong);
  border-radius: 0;
}

/* ------------------------------ 参数表格 ------------------------------ */
.catalog-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--c-line);
  background: #fff;
}

.catalog-table {
  width: 100%;
  min-width: 900px;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: 12.5px;
  color: var(--c-text);
}

.catalog-table thead th {
  padding: 14px 12px;
  background: #262626;
  color: #fff;
  font-size: 12.5px;
  font-weight: 500;
  text-align: center;
  white-space: nowrap;
}

/* 固定列宽，保证 8 列在桌面端完整可见 */
.catalog-table th:nth-child(1) { width: 20%; }
.catalog-table th:nth-child(2) { width: 10%; }
.catalog-table th:nth-child(3) { width: 10%; }
.catalog-table th:nth-child(4) { width: 12%; }
.catalog-table th:nth-child(5) { width: 13%; }
.catalog-table th:nth-child(6) { width: 10%; }
.catalog-table th:nth-child(7) { width: 9%; }
.catalog-table th:nth-child(8) { width: 16%; }

.catalog-table thead th:first-child {
  text-align: left;
}

.catalog-table tbody td {
  padding: 14px 12px;
  border-bottom: 1px solid #ededed;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.catalog-table tbody tr:last-child td {
  border-bottom: 0;
}

.catalog-table tbody tr:hover {
  background: #f7f7f7;
}

.catalog-table .cell-model {
  text-align: left;
  white-space: normal;
}

/* 型号单元格：点击复制型号名称 */
.cell-model .model-copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 100%;
  padding: 0;
  border: 0;
  background: none;
  font-family: inherit;
  text-align: left;
  cursor: pointer;
}

.cell-model .model-copy strong {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--c-ink);
  transition: color var(--t-fast);
}

.cell-model .model-copy:hover strong {
  color: var(--c-primary);
}

.cell-model .model-copy:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 3px;
}

.cell-model .model-copy__icon {
  flex: none;
  width: 12px;
  height: 12px;
  color: var(--c-muted);
  opacity: 0.4;
  transition: opacity var(--t-fast), color var(--t-fast);
}

.cell-model .model-copy:hover .model-copy__icon,
.cell-model .model-copy:focus-visible .model-copy__icon {
  opacity: 1;
  color: var(--c-primary);
}

.cell-actions a,
.cell-actions .row-download {
  font-size: 12px;
  white-space: nowrap;
}

.cell-actions .row-detail {
  margin-right: 10px;
  color: var(--c-primary);
}

.cell-actions .row-detail:hover {
  color: var(--c-primary-dark);
}

/* 规格书下载：实心主色小按钮，和“查看参数”文字链区分 */
.cell-actions .row-download {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 3px;
  background: var(--c-primary);
  color: #fff;
  line-height: 1.5;
  vertical-align: middle;
  transition: background-color 0.18s ease;
}

.cell-actions .row-download:hover {
  background: var(--c-primary-dark);
  color: #fff;
}

/* 未上传规格书时的“暂无”占位 */
.cell-actions .row-download.is-disabled,
.cell-actions .row-download.is-disabled:hover {
  background: #eef2f5;
  color: #9aa8b2;
  cursor: not-allowed;
}

/* ------------------------------ 产品分页 ------------------------------ */
.catalog-pager {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px;
  padding: 22px 0 4px;
}

.catalog-pager button {
  min-width: 36px;
  height: 36px;
  padding: 0 10px;
  border: 1px solid var(--c-line-strong);
  background: #fff;
  color: var(--c-text);
  font-size: 12.5px;
  line-height: 1;
  font-family: inherit;
  cursor: pointer;
  transition: border-color var(--t-fast), color var(--t-fast), background var(--t-fast);
}

.catalog-pager button:hover:not(:disabled):not(.is-current) {
  border-color: var(--c-primary);
  color: var(--c-primary);
}

.catalog-pager button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.catalog-pager button.is-current {
  background: #262626;
  border-color: #262626;
  color: #fff;
  cursor: default;
}

.catalog-pager .pager-ellipsis {
  min-width: 22px;
  text-align: center;
  color: var(--c-muted);
}

.catalog-pager .pager-info {
  margin-left: 12px;
  font-size: 12.5px;
  color: var(--c-muted);
}

@media (max-width: 768px) {
  .catalog-pager button {
    min-width: 32px;
    height: 32px;
    font-size: 12px;
  }

  .catalog-pager .pager-info {
    width: 100%;
    margin-left: 0;
    margin-top: 4px;
    text-align: center;
  }
}

/* ------------------------------ 响应式 ------------------------------ */
@media (max-width: 1180px) {
  .catalog-section {
    padding: 28px 0 64px;
  }

  .catalog-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .catalog-side {
    display: none;
  }

  .mobile-cat {
    display: block;
    border-radius: 0;
  }

  .catalog-hero {
    padding-bottom: 56px;
  }

  .catalog-hero__photo {
    width: 70%;
    opacity: 0.42;
  }

  .catalog-hero__stats li {
    min-width: 118px;
    padding-right: 22px;
    margin-right: 22px;
  }
}

@media (max-width: 768px) {
  .catalog-hero {
    padding: calc(var(--header-h) + 36px) 0 52px;
  }

  .catalog-hero h1 {
    font-size: 26px;
  }

  .catalog-hero p {
    font-size: 14px;
  }

  .catalog-hero__photo {
    width: 100%;
    opacity: 0.3;
  }

  .catalog-hero__lines {
    gap: 8px;
    margin-top: 20px;
  }

  .catalog-hero__lines a {
    padding: 8px 13px;
    font-size: 13px;
  }

  .catalog-hero__stats {
    margin-top: 26px;
    padding-top: 20px;
    gap: 18px;
  }

  .catalog-hero__stats li {
    min-width: 0;
    padding-right: 0;
    margin-right: 0;
    border-right: 0;
  }

  .catalog-hero__stats strong {
    font-size: 24px;
  }

  .catalog-hero__stats span {
    font-size: 12.5px;
  }

  .catalog-titlebar {
    flex-direction: column;
    gap: 16px;
  }

  .catalog-titlebar__main h2 {
    font-size: 23px;
  }

  .catalog-toolbar .search-box {
    min-width: 100%;
  }

  .catalog-tools {
    width: 100%;
    justify-content: space-between;
  }

  .catalog-table {
    min-width: 820px;
    font-size: 12.5px;
  }

  .catalog-table thead th,
  .catalog-table tbody td {
    padding: 13px 12px;
  }
}

@media (max-width: 520px) {
  .catalog-hero h1 {
    font-size: 23px;
  }

  .catalog-titlebar__main h2 {
    font-size: 20px;
  }
}

/* ==================================================================
   全站字号统一上调（2026-10）
   说明：只提升字号/行高与少量行内留白，不改动布局结构。
   桌面端统一放在 13.5–17px 区间，移动端在末尾媒体查询里回落，
   避免小屏出现挤压或横向溢出。
   ================================================================== */

/* --- 通用标题与说明 --- */
.eyebrow { font-size: 13px; }
.section-title { font-size: 36px; }
.section-desc { font-size: 17px; }
.section-more { font-size: 15.5px; }

/* 面包屑 */
.breadcrumb,
.breadcrumb a,
.breadcrumb li { font-size: 15px; }

/* --- 首页：快捷服务 --- */
.cool-links__item strong { font-size: 18px; }
/* 快捷服务入口：描述文案加长后需要更宽松的行高 */
.cool-links__item em {
  font-size: 15px;
  line-height: 1.7;
  max-width: 240px;
  margin-inline: auto;
}

/* --- 内容卡片通用（技术优势 / 产品卡） --- */
.feature-card h3 { font-size: 18px; }
.feature-card p { font-size: 15.5px; }
/* 用 p 前缀提高优先级，避免被 .feature-card p 的高度覆盖 */
.feature-card p.feature-card__meta { font-size: 14px; }

.product-name { font-size: 17px; }
.product-model { font-size: 13px; }
.product-spec span { font-size: 13px; }
.product-cat { font-size: 12.5px; }
.product-foot { font-size: 14.5px; }

/* --- 首页：技术服务 --- */
.service-item h3 { font-size: 18px; }
.service-item p { font-size: 15.5px; }
.process-step em { font-size: 13.5px; }
.process-step h3 { font-size: 17.5px; }
.process-step p { font-size: 14.5px; }

/* --- 首页：技术资讯 --- */
.cool-news__label span { font-size: 14px; }
.cool-news__meta { font-size: 12.5px; }
.cool-news__title { font-size: 16px; }

/* --- 页脚 --- */
.footer-slogan { font-size: 15px; }
.footer-desc { font-size: 15px; }
.footer-col h3 { font-size: 15.5px; }
.footer-col ul li a { font-size: 14.5px; }
.footer-contact li { font-size: 14.5px; }
.footer-bottom { font-size: 13.5px; }

/* --- 产品中心 --- */
.catalog-summary { font-size: 15px; }
.catalog-titlebar p { font-size: 15px; }
.catalog-table { font-size: 14.5px; }
.catalog-table thead th { font-size: 14.5px; }
.catalog-table tbody td { padding: 16px 12px; }
.cell-model .model-copy strong { font-size: 16px; }
.catalog-table .row-inquire { font-size: 14.5px; }

/* --- 技术支持：资料下载 --- */
.doc-summary { font-size: 16px; }
.doc-note { font-size: 14.5px; }
.doc-table .file-name { font-size: 14px; }
.doc-table .file-meta { font-size: 12.5px; }

/* --- 产品详情 --- */
.detail-info__model { font-size: 14px; }
.detail-tags span { font-size: 13.5px; }
.detail-summary { font-size: 16px; }
.key-specs span { font-size: 13.5px; }
.spec-table { font-size: 15px; }
.spec-table thead th { font-size: 15px; }

/* --- 表单（联系页 / 技术支持） --- */
.form-card > p { font-size: 15px; }
.field label { font-size: 15px; }
.field input,
.field select,
.field textarea { font-size: 15px; }
.checkbox-field { font-size: 14.5px; }
.error-msg { font-size: 14px; }

/* --- 第二级上调：页级辅助文字（12–14px 区间的可见文本） --- */
/* 导航下拉 */
.mega-col h3 { font-size: 14px; }
.mega-col li a { font-size: 13.5px; }
.mega-foot-inner { font-size: 13px; }

/* 内页头部 */
.page-hero p { font-size: 15px; }
.page-hero__aside div span { font-size: 12.5px; }

/* 产品中心：筛选栏与侧栏 */
.filter-panel__head { font-size: 14px; }
.filter-panel__head span { font-size: 12px; }
.cat-tree__all { font-size: 14px; }
.cat-tree__all b { font-size: 12px; }
.cat-group__title { font-size: 14px; }
.cat-group__title b { font-size: 12px; }
.cat-group ul a { font-size: 13.5px; }
.search-box input,
.catalog-toolbar .search-box input,
.sort-box,
.mobile-cat { font-size: 14px; }
.catalog-side__help h3 { font-size: 14px; }
.catalog-side__help a { font-size: 13.5px; }
.catalog-hero p { font-size: 15px; }

/* 产品中心：表格与分页 */
.cell-actions a,
.cell-actions .row-download { font-size: 14px; }
.catalog-pager button,
.catalog-pager .pager-info { font-size: 13.5px; }
.empty-state p { font-size: 14px; }
.cat-intro__ph { font-size: 14px; }
.data-notice { font-size: 13.5px; }

/* 产品详情 */
.detail-gallery__hint { font-size: 12px; }
.detail-meta { font-size: 13.5px; }
.detail-section h2 span { font-size: 12px; }
.feature-list li { font-size: 14.5px; }
.dimension-card__text h3 { font-size: 15px; }
.dimension-card__text p { font-size: 14px; }

/* 技术支持 */
.doc-card h3 { font-size: 15px; }
.doc-card p { font-size: 14px; }
.faq-q { font-size: 15.5px; }
.faq-a__inner { font-size: 14.5px; }
.step-card em { font-size: 12px; }
.step-card h3 { font-size: 15.5px; }
.step-card p { font-size: 14px; }
.form-hint { font-size: 13px; }

/* 行业应用 */
.app-block__body p { font-size: 15px; }
.app-keywords span { font-size: 12.5px; }
.app-lenses h3 { font-size: 13.5px; }
.app-lenses p { font-size: 14px; }
.app-tile__desc { font-size: 15px; }
.app-tile__tag { font-size: 12px; }
.app-tile__go { font-size: 14.5px; }

/* 关于我们 */
.timeline time { font-size: 13px; }
.timeline h3 { font-size: 15.5px; }
.timeline p { font-size: 14px; }
.capability-card p { font-size: 14px; }
.capability-card ul li { font-size: 13.5px; }
.quality-list li { font-size: 14px; }

/* 联系我们 */
.contact-card h3 { font-size: 15.5px; }
.contact-list li { font-size: 14px; }
.contact-list span { font-size: 12.5px; }
.contact-promise h3 { font-size: 15.5px; }
.contact-promise li { font-size: 13.5px; }

/* 首页补充（产品线、资讯与 CTA） */
.cool-series__list em { font-size: 14px; }
.cool-brand__points li { font-size: 15px; }
.cool-brand__stats span { font-size: 14px; }
.cool-more { font-size: 14px; }
.featured-scroll .product-cat { font-size: 11.5px; }
.cta-band p { font-size: 15px; }

/* --- 移动端回落，避免挤压 --- */
@media (max-width: 768px) {
  .section-title { font-size: 26px; }
  .section-desc { font-size: 16px; }

  .feature-card h3,
  .service-item h3 { font-size: 17px; }

  .feature-card p,
  .service-item p { font-size: 14.5px; }

  .process-step h3 { font-size: 16.5px; }
  .process-step p { font-size: 14px; }

  .cool-news__title { font-size: 15px; }

  .catalog-table,
  .catalog-table thead th { font-size: 13.5px; }
}

/* -------------------- 内页导航：与首页深色导航统一 -------------------- */
body:not([data-page="home"]) .site-header {
  background: rgba(22, 27, 28, 0.96);
  border-bottom-color: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
}

body:not([data-page="home"]) .site-header.is-scrolled {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.24);
}

body:not([data-page="home"]) .brand-text strong {
  color: #fff;
}

body:not([data-page="home"]) .brand-text em {
  color: rgba(255, 255, 255, 0.55);
}

body:not([data-page="home"]) .nav-link {
  color: rgba(255, 255, 255, 0.82);
}

body:not([data-page="home"]) .nav-link:hover,
body:not([data-page="home"]) .nav-item.is-active > .nav-link {
  color: #fff;
}

body:not([data-page="home"]) .nav-toggle {
  border-color: rgba(255, 255, 255, 0.35);
}

body:not([data-page="home"]) .nav-toggle span {
  background: #fff;
}

/* ======================================================================
   首页交互增强（克制版）
   包含：首屏入场、滚动显现、鼠标 / 滚动视差、数字增长、悬停反馈
   仅在首页启用，且系统开启“减少动态效果”时自动降级
   ====================================================================== */

/* ---- 顶部滚动进度条 ---- */
.home-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1300;
  width: 100%;
  height: 3px;
  pointer-events: none;
}

.home-progress i {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--c-primary), #8ac452);
  box-shadow: 0 0 12px rgba(38, 166, 92, 0.75), 0 0 3px rgba(138, 196, 82, 0.9);
}

/* ---- 首屏入场：文字逐行错落上浮 ---- */
body[data-page="home"] .cool-hero__eyebrow,
body[data-page="home"] .hero-title-line,
body[data-page="home"] .cool-hero h1 em,
body[data-page="home"] .cool-hero__lead,
body[data-page="home"] .cool-hero__actions {
  animation: jgHeroIn 0.85s cubic-bezier(0.22, 0.61, 0.36, 1) both;
}

/* 标题两行分开入场，形成先主标题、后副标题的错落节奏 */
.hero-title-line {
  display: block;
}

body[data-page="home"] .cool-hero__eyebrow { animation-delay: 0.06s; }
body[data-page="home"] .hero-title-line { animation-delay: 0.18s; }
body[data-page="home"] .cool-hero h1 em { animation-delay: 0.32s; }
body[data-page="home"] .cool-hero__lead { animation-delay: 0.48s; }
body[data-page="home"] .cool-hero__actions { animation-delay: 0.62s; }

@keyframes jgHeroIn {
  from {
    opacity: 0;
    transform: translateY(26px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

body[data-page="home"] .cool-hero__scroll span {
  transform-origin: top center;
  animation: jgScrollHint 2.4s ease-in-out infinite;
}

/* 下滑提示改为可点击按钮，点击后滚动到快捷服务区 */
body[data-page="home"] button.cool-hero__scroll {
  padding: 0;
  font-family: inherit;
  background: none;
  border: 0;
  cursor: pointer;
  transition: color 0.3s ease;
}

body[data-page="home"] button.cool-hero__scroll:hover {
  color: #fff;
}

body[data-page="home"] button.cool-hero__scroll:focus-visible {
  outline: 1px solid var(--c-primary);
  outline-offset: 6px;
}

@keyframes jgScrollHint {
  0%, 100% { transform: scaleY(0.35); opacity: 0.4; }
  50% { transform: scaleY(1); opacity: 0.9; }
}

/* ---- 首屏视差（仅桌面鼠标设备） ---- */
@media (min-width: 1025px) and (hover: hover) {
  body[data-page="home"] .cool-hero__bg {
    top: -8%;
    bottom: -8%;
    will-change: transform;
  }

  body[data-page="home"] .cool-hero__art {
    transform: translate3d(calc(var(--mx, 0) * 30px), calc(-50% + var(--my, 0) * 24px), 0);
    transition: transform 0.5s cubic-bezier(0.22, 0.61, 0.36, 1);
    will-change: transform;
  }

  body[data-page="home"] .cool-hero__glow {
    transform: translate3d(calc(var(--mx, 0) * -26px), calc(var(--my, 0) * -18px), 0);
    transition: transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1);
    will-change: transform;
  }
}

/* ---- 滚动显现：整块与逐项错峰 ---- */
body.jg-motion .jg-reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 0.8s cubic-bezier(0.22, 0.61, 0.36, 1),
    transform 0.8s cubic-bezier(0.22, 0.61, 0.36, 1);
}

body.jg-motion .jg-reveal.is-in {
  opacity: 1;
  transform: none;
}

body.jg-motion .jg-reveal-group > * {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.75s cubic-bezier(0.22, 0.61, 0.36, 1),
    transform 0.75s cubic-bezier(0.22, 0.61, 0.36, 1);
}

body.jg-motion .jg-reveal-group.is-in > * {
  opacity: 1;
  transform: none;
}

body.jg-motion .jg-reveal-group.is-in > *:nth-child(1) { transition-delay: 0.04s; }
body.jg-motion .jg-reveal-group.is-in > *:nth-child(2) { transition-delay: 0.12s; }
body.jg-motion .jg-reveal-group.is-in > *:nth-child(3) { transition-delay: 0.2s; }
body.jg-motion .jg-reveal-group.is-in > *:nth-child(4) { transition-delay: 0.28s; }
body.jg-motion .jg-reveal-group.is-in > *:nth-child(5) { transition-delay: 0.36s; }
body.jg-motion .jg-reveal-group.is-in > *:nth-child(6) { transition-delay: 0.44s; }
body.jg-motion .jg-reveal-group.is-in > *:nth-child(7) { transition-delay: 0.52s; }
body.jg-motion .jg-reveal-group.is-in > *:nth-child(8) { transition-delay: 0.6s; }

/* ---- 悬停微反馈 ---- */
/* 快捷服务入口：顶部绿线自中心展开，图标轻微上浮 */
.cool-links__item {
  position: relative;
}

.cool-links__item::after {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--c-primary);
  transform: translateX(-50%);
  transition: width 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.cool-links__item:hover::after {
  width: 64px;
}

.cool-links__icon {
  transition: transform 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.cool-links__item:hover .cool-links__icon {
  transform: translateY(-4px);
}

/* 技术优势卡片：图标上浮，标题与指标转绿 */
.section--tech .feature-icon {
  transition: transform 0.35s ease;
}

.section--tech .feature-card:hover .feature-icon {
  transform: translateY(-3px);
}

.section--tech .feature-card h3,
.section--tech .feature-card__meta {
  transition: color 0.3s ease;
}

.section--tech .feature-card:hover h3 {
  color: var(--c-primary-deep);
}

.section--tech .feature-card:hover .feature-card__meta {
  color: var(--c-primary);
}

/* 技术服务卡片：图标上浮 */
.service-item__icon {
  transition: transform 0.35s ease;
}

.service-item:hover .service-item__icon {
  transform: translateY(-3px);
}

/* 技术资讯：悬停浅底 */
.cool-news__item {
  transition: background 0.3s ease;
}

.cool-news__item:hover {
  background: #fafbfa;
}

/* 企业实力：图片缓慢推近 */
.cool-brand__media img {
  transition: transform 0.8s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.cool-brand__media:hover img {
  transform: scale(1.04);
}

/* ---- 悬停与点击反馈强化 ---- */
/* 首屏按钮：上浮 + 投影 */
body[data-page="home"] .cool-hero__actions .btn {
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease,
    border-color 0.25s ease, color 0.25s ease;
}

body[data-page="home"] .cool-hero__actions .btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.32);
}

body[data-page="home"] .cool-hero__actions .btn-green:hover {
  box-shadow: 0 12px 26px rgba(38, 166, 92, 0.38);
}

body[data-page="home"] .cool-hero__actions .btn:active {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.28);
}

/* 快捷入口：整块绿线 + 图标反白填充 */
body[data-page="home"] .cool-links__item::after {
  left: 0;
  height: 3px;
  transform: none;
}

body[data-page="home"] .cool-links__item:hover::after {
  width: 100%;
}

body[data-page="home"] .cool-links__item {
  transition: background 0.3s ease;
}

body[data-page="home"] .cool-links__item:hover {
  background: #f4f9f5;
}

body[data-page="home"] .cool-links__icon {
  border-radius: 50%;
  transition: transform 0.35s ease, background 0.3s ease, color 0.3s ease,
    box-shadow 0.3s ease;
}

body[data-page="home"] .cool-links__item:hover .cool-links__icon {
  color: #fff;
  background: var(--c-primary);
  box-shadow: 0 10px 22px rgba(38, 166, 92, 0.3);
  transform: translateY(-5px);
}

/* 技术优势卡片：顶部绿条自左铺满 + 图标色块反白 */
body[data-page="home"] .section--tech .feature-card {
  position: relative;
  transition: background 0.3s ease, border-color 0.3s ease;
}

body[data-page="home"] .section--tech .feature-card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--c-primary);
  transition: width 0.45s cubic-bezier(0.22, 0.61, 0.36, 1);
}

body[data-page="home"] .section--tech .feature-card:hover::before {
  width: 100%;
}

body[data-page="home"] .section--tech .feature-card:hover {
  background: #f8fbf9;
}

body[data-page="home"] .section--tech .feature-icon {
  transition: transform 0.35s ease, background 0.3s ease, color 0.3s ease,
    border-color 0.3s ease, box-shadow 0.3s ease;
}

body[data-page="home"] .section--tech .feature-card:hover .feature-icon {
  color: #fff;
  background: var(--c-primary);
  border-color: var(--c-primary);
  box-shadow: 0 10px 20px rgba(38, 166, 92, 0.26);
  transform: translateY(-4px);
}

/* 技术服务卡片：顶部绿条 + 标题转深绿 */
body[data-page="home"] .service-item {
  position: relative;
}

body[data-page="home"] .service-item::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--c-primary);
  transition: width 0.45s cubic-bezier(0.22, 0.61, 0.36, 1);
}

body[data-page="home"] .service-item:hover::before {
  width: 100%;
}

body[data-page="home"] .service-item h3 {
  transition: color 0.3s ease;
}

body[data-page="home"] .service-item:hover h3 {
  color: var(--c-primary-deep);
}

/* 服务流程：悬停浅底 */
body[data-page="home"] .process-step {
  transition: background 0.3s ease;
}

body[data-page="home"] .process-step:hover {
  background: #f7faf8;
}

/* 技术资讯：左侧绿条 + 浅底 */
body[data-page="home"] .cool-news__item:hover {
  background: #f3f8f4;
  box-shadow: inset 3px 0 0 var(--c-primary);
}

/* 五大产品线：行内绿条 */
body[data-page="home"] .cool-series__list a {
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

body[data-page="home"] .cool-series__list a:hover {
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 3px 0 0 #8ac452;
}

body[data-page="home"] .cool-more span {
  display: inline-block;
  transition: transform 0.3s ease;
}

body[data-page="home"] .cool-more:hover span {
  transform: translateX(5px);
}

/* 企业实力：图片推近 + 装饰圆环旋转 */
body[data-page="home"] .cool-brand__media::after {
  transition: transform 0.9s cubic-bezier(0.22, 0.61, 0.36, 1),
    border-color 0.5s ease, box-shadow 0.5s ease;
}

body[data-page="home"] .cool-brand__media:hover::after {
  transform: rotate(90deg) scale(1.08);
  border-color: rgba(38, 166, 92, 0.75);
  box-shadow: 0 0 0 44px rgba(38, 166, 92, 0.1);
}

body[data-page="home"] .cool-brand__media:hover img {
  transform: scale(1.06);
}

/* 热门推荐：图片放大 + 型号名转深绿 */
body[data-page="home"] .featured-scroll .product-card:hover .product-media img {
  transform: scale(1.07);
}

body[data-page="home"] .featured-scroll .product-card .product-name a {
  transition: color 0.3s ease;
}

body[data-page="home"] .featured-scroll .product-card:hover .product-name a {
  color: var(--c-primary-deep);
}

body[data-page="home"] .featured-scroll .product-card:hover::before {
  color: var(--c-primary);
}

/* 数字增长结束后的轻微脉冲 */
.cool-brand__stats strong.is-counted {
  animation: jgCountPulse 0.55s ease-out;
}

@keyframes jgCountPulse {
  0% { transform: scale(1); }
  45% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

/* ======================================================================
   首页持续动效与实时跟随
   首屏刻度环旋转 / 呼吸、场景色轮换、鼠标光斑、卡片 3D 倾斜、区块视差
   ====================================================================== */

/* ---- 首屏刻度环：两圈虚线反向旋转，内环呼吸 ---- */
.hero-art__spin,
.hero-art__pulse {
  transform-box: view-box;
  transform-origin: 330px 300px;
}

.hero-art__spin--slow {
  animation: heroSpin 90s linear infinite;
}

.hero-art__spin--fast {
  animation: heroSpin 55s linear infinite reverse;
}

@keyframes heroSpin {
  to { transform: rotate(360deg); }
}

.hero-art__pulse {
  animation: heroBreath 4.5s ease-in-out infinite;
}

@keyframes heroBreath {
  0%, 100% { transform: scale(1); opacity: 0.2; }
  50% { transform: scale(1.085); opacity: 0.7; }
}

/* ---- 首屏光线场景色（pager 切换时缓慢过渡） ---- */
.cool-hero__tint {
  position: absolute;
  inset: 0;
  background-color: transparent;
  transition: background-color 0.6s ease;
}

body[data-page="home"] .cool-hero[data-scene="1"] .cool-hero__tint { background-color: rgba(56, 112, 168, 0.2); }
body[data-page="home"] .cool-hero[data-scene="2"] .cool-hero__tint { background-color: rgba(38, 166, 92, 0.18); }
body[data-page="home"] .cool-hero[data-scene="3"] .cool-hero__tint { background-color: rgba(0, 132, 142, 0.18); }
body[data-page="home"] .cool-hero[data-scene="4"] .cool-hero__tint { background-color: rgba(120, 140, 155, 0.2); }

/* ---- 鼠标跟随光斑 ---- */
.cool-hero__spot {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 560px;
  height: 560px;
  margin: -280px 0 0 -280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(138, 196, 82, 0.18), rgba(138, 196, 82, 0) 62%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.35s ease-out, opacity 0.6s ease;
}

body[data-page="home"] .cool-hero.is-pointer .cool-hero__spot {
  opacity: 1;
}

/* ---- 热门产品卡片：跟随鼠标的 3D 倾斜 ---- */
.featured-scroll .product-card {
  will-change: transform;
}

@media (max-width: 1024px) {
  .cool-hero__spot {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-art__spin,
  .hero-art__pulse {
    animation: none;
  }

  .cool-hero__spot {
    display: none;
  }
}

body.jg-motion .jg-reveal-group[data-reveal-dir="left"]:not(.is-in) > * {
  transform: translateX(-38px);
}

body.jg-motion .jg-reveal-group[data-reveal-dir="right"]:not(.is-in) > * {
  transform: translateX(38px);
}

body.jg-motion .jg-reveal-group[data-reveal-dir="alt"]:not(.is-in) > *:nth-child(odd) {
  transform: translateX(-34px);
}

body.jg-motion .jg-reveal-group[data-reveal-dir="alt"]:not(.is-in) > *:nth-child(even) {
  transform: translateX(34px);
}

body.jg-motion .jg-reveal[data-reveal-dir="right"]:not(.is-in) {
  transform: translateX(44px);
}

body.jg-motion .jg-reveal[data-reveal-dir="left"]:not(.is-in) {
  transform: translateX(-44px);
}

/* 嵌套分组减小位移，避免内外叠加过大 */
body.jg-motion .jg-reveal-group.section-head__main[data-reveal-dir="left"]:not(.is-in) > * {
  transform: translateX(-24px);
}

body.jg-motion .jg-reveal-group.cool-brand__points[data-reveal-dir="left"]:not(.is-in) > * {
  transform: translateX(-20px);
}

/* 首屏 eyebrow 从左滑入，与下方标题的上升形成方向差异 */
@keyframes jgHeroInX {
  from {
    opacity: 0;
    transform: translateX(-26px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

body[data-page="home"] .cool-hero__eyebrow {
  animation-name: jgHeroInX;
}

/* ---- 减少动态效果：全部降级为静态 ---- */
@media (prefers-reduced-motion: reduce) {
  body[data-page="home"] .cool-hero__eyebrow,
  body[data-page="home"] .hero-title-line,
  body[data-page="home"] .cool-hero h1 em,
  body[data-page="home"] .cool-hero__lead,
  body[data-page="home"] .cool-hero__actions,
  body[data-page="home"] .cool-hero__scroll span {
    animation: none;
  }

  body.jg-motion .jg-reveal,
  body.jg-motion .jg-reveal-group > * {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .home-progress {
    display: none;
  }
}

/* ==========================================================================
   五大产品线 · 整块背景图随悬停切换（默认图 + 五个系列图）
   ========================================================================== */
.cool-series__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  /* 背景图层带 scale(1.03) 放大，在这里裁剪，防止溢出到相邻区块 */
  overflow: hidden;
}

.cool-series__bg-layer {
  position: absolute;
  inset: 0;
  background-position: right var(--bg-shift, 50%);
  background-size: cover;
  background-repeat: no-repeat;
  opacity: 0;
  transform: scale(1.03);
  transition: opacity 0.65s ease, transform 1.2s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.cool-series__bg-layer.is-active {
  opacity: 1;
  transform: none;
}

/* 左侧压暗，保证标题与列表可读 */
.cool-series__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(20, 25, 26, 0.96) 0%, rgba(20, 25, 26, 0.9) 40%, rgba(20, 25, 26, 0.42) 100%);
}

.cool-series__grid {
  position: relative;
  z-index: 1;
}

@media (max-width: 1024px) {
  .cool-series__bg::after {
    background: linear-gradient(90deg, rgba(20, 25, 26, 0.95) 0%, rgba(20, 25, 26, 0.82) 100%);
  }
}

/* ==========================================================================
   首页热门推荐产品：卡片单行缓慢自动横向滑动（无缝循环，悬停暂停）
   ========================================================================== */
.section--featured .container {
  /* 作为滑动视口，裁掉滑出可视区的卡片 */
  overflow: hidden;
}

.section--featured .featured-scroll {
  display: flex;
  gap: 0;
  width: max-content;
  overflow: visible;
  padding: 4px 0 10px;
  scroll-snap-type: none;
  animation: featuredMarquee 88s linear infinite;
  will-change: transform;
}

.section--featured .featured-scroll:hover,
.section--featured .featured-scroll:focus-within {
  animation-play-state: paused;
}

.section--featured .featured-scroll .product-card {
  flex: 0 0 300px;
  margin-right: 26px;
}

/* 复制出来用于无缝衔接的卡片直接显示，不参与入场动画 */
.section--featured .featured-scroll .product-card[data-marquee-clone] {
  opacity: 1 !important;
  transform: none !important;
  transition: none !important;
}

/* 克隆卡片沿用原卡片序号（01～06），不继续往后编号 */
.section--featured .featured-scroll .product-card[data-marquee-clone]::before {
  counter-increment: none;
  content: attr(data-marquee-index);
}

/* 卡片内的产品概述文案 */
.section--featured .product-summary {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@keyframes featuredMarquee {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(-50%, 0, 0); }
}

@media (max-width: 768px) {
  .section--featured .featured-scroll {
    animation-duration: 66s;
  }

  .section--featured .featured-scroll .product-card {
    flex-basis: 240px;
    margin-right: 18px;
  }
}

/* 关闭动效时改为手动横向滚动，保证内容仍可查看 */
@media (prefers-reduced-motion: reduce) {
  .section--featured .featured-scroll {
    animation: none;
  }

  .section--featured .container {
    overflow-x: auto;
  }
}

/* ==========================================================================
   首页首屏：改用实景背景图后，矢量刻线只保留虚线旋转环作为叠加动效
   ========================================================================== */
.cool-hero__art {
  opacity: 0.35;
}

.cool-hero__art > circle,
.cool-hero__art > path {
  /* 实线同心圆与光路线条由背景图提供，避免与图片中的光圈重复 */
  display: none;
}

@media (max-width: 768px) {
  .cool-hero__bg {
    background-position: 72% center;
  }
}
/* ==========================================================================
   询价表单：标题下方备注（说明信息可达与 24 小时回复）
   ========================================================================== */
.form-card .form-note {
  margin: 12px 0 10px;
  padding: 12px 16px;
  font-size: 14.5px;
  line-height: 1.8;
  color: #46525a;
  background: rgba(38, 166, 92, 0.06);
  border-left: 3px solid #26a65c;
  border-radius: 0 8px 8px 0;
}

@media (max-width: 768px) {
  .form-card .form-note {
    font-size: 14px;
    padding: 10px 14px;
  }
}

/* ==========================================================================
   首页五大产品线：桌面端控制在一个屏幕高度内，内容按视口高度自适应收紧
   ========================================================================== */
@media (min-width: 1025px) {
  .cool-series {
    display: flex;
    flex-direction: column;
    /* 用 margin-block:auto 居中：内容放得下时上下均分留白，
       放不下时自动贴齐顶部，不会向上溢出顶到导航栏 */
    justify-content: flex-start;
    align-items: stretch;
    /* 只锁下限：正常一屏刚好占满；极矮屏幕内容放不下时自然撑高，不裁切文字 */
    min-height: 100vh;
    /* 顶部预留固定导航栏高度，避免标题被导航栏遮住 */
    padding: calc(var(--header-h, 84px) + clamp(8px, 1.2vh, 20px)) 0 clamp(16px, 2.4vh, 36px);
  }

  .cool-series__grid {
    width: 100%;
    margin-block: auto;
  }

  .cool-series__panel h2 {
    margin: clamp(6px, 1vh, 12px) 0 clamp(6px, 0.9vh, 11px);
    font-size: clamp(24px, 2.9vh, 32px);
    line-height: 1.28;
  }

  .cool-series__panel > p {
    margin-bottom: clamp(10px, 1.4vh, 18px);
    font-size: clamp(14px, 1.6vh, 15.5px);
    line-height: 1.66;
  }

  .cool-series__list a {
    padding: clamp(5px, 0.9vh, 10px) 12px;
  }

  .cool-series__list a strong {
    font-size: clamp(16px, 1.95vh, 18px);
  }

  .cool-series__list a em {
    font-size: clamp(12.5px, 1.5vh, 14px);
  }

  .cool-series__list .cool-series__desc {
    margin-top: clamp(3px, 0.5vh, 6px);
    font-size: clamp(12.5px, 1.5vh, 14.5px);
    line-height: 1.5;
  }
}

/* 屏幕高度偏低时进一步收紧，确保五条产品线一屏放得下 */
@media (min-width: 1025px) and (max-height: 820px) {
  .cool-series {
    /* 同样预留导航栏高度 */
    padding: calc(var(--header-h, 84px) + 6px) 0 14px;
  }

  .cool-series__panel h2 {
    margin: 5px 0 5px;
    font-size: clamp(24px, 3vh, 28px);
  }

  .cool-series__panel > p {
    margin-bottom: 10px;
    font-size: 13px;
    line-height: 1.55;
  }

  .cool-series__list a {
    padding: 4px 12px;
  }

  .cool-series__list a strong {
    font-size: 16.5px;
  }

  .cool-series__list a em {
    font-size: 12.5px;
  }

  .cool-series__list .cool-series__desc {
    margin-top: 3px;
    font-size: 12px;
    line-height: 1.45;
  }
}

/* 首页：五大产品线深色区块经过导航时，导航转为深色叠加（与首屏顶部一致） */
body[data-page="home"] .site-header {
  transition: background-color 0.35s ease, border-color 0.35s ease, box-shadow var(--t-fast);
}

body[data-page="home"] .site-header.is-dark {
  background: rgba(27, 32, 33, 0.92);
  border-bottom-color: rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

body[data-page="home"] .site-header.is-dark .brand-text strong {
  color: #fff;
}

body[data-page="home"] .site-header.is-dark .brand-text em {
  color: rgba(255, 255, 255, 0.55);
}

body[data-page="home"] .site-header.is-dark .nav-link {
  color: rgba(255, 255, 255, 0.78);
}

body[data-page="home"] .site-header.is-dark .nav-link:hover,
body[data-page="home"] .site-header.is-dark .nav-item.is-active > .nav-link {
  color: #fff;
}

body[data-page="home"] .site-header.is-dark .nav-cta {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.45);
  color: #fff;
}

body[data-page="home"] .site-header.is-dark .nav-cta:hover {
  background: var(--c-primary);
  border-color: var(--c-primary);
}

body[data-page="home"] .site-header.is-dark .nav-toggle span {
  background: #fff;
}

/* ==========================================================================
   产品对比：列表勾选 + 底部悬浮清单 + 参数对比弹窗
   ========================================================================== */

/* 列表新增“对比”首列：整表按容器宽度铺满，9 列全部可见，不出现横向拖动 */
.catalog-table {
  min-width: 0;
  width: 100%;
  font-size: 13.5px;
}

.catalog-table th:nth-child(1) { width: 40px; }
.catalog-table th:nth-child(2) { width: 22%; }
.catalog-table th:nth-child(3) { width: 11%; }
.catalog-table th:nth-child(4) { width: 9%; }
.catalog-table th:nth-child(5) { width: 9%; }
.catalog-table th:nth-child(6) { width: 10%; }
.catalog-table th:nth-child(7) { width: 9%; }
.catalog-table th:nth-child(8) { width: 9%; }
.catalog-table th:nth-child(9) { width: auto; }

/* 压紧单元格内边距与字号，为最后一列腾出宽度 */
.catalog-table thead th,
.catalog-table tbody td {
  padding: 12px 8px;
}

.catalog-table thead th {
  font-size: 13px;
}

.catalog-table thead th.cell-compare,
.catalog-table tbody td.cell-compare {
  width: 40px;
  padding-left: 0;
  padding-right: 0;
  text-align: center;
}

.catalog-table thead th.cell-compare {
  font-size: 12px;
  letter-spacing: 0;
}

.catalog-table thead th:nth-child(2) {
  text-align: left;
}

.cell-model .model-copy strong {
  font-size: 14.5px;
}

/* 操作列：两个入口横排，不换行也不被裁切 */
.catalog-table .cell-actions {
  white-space: nowrap;
}

.catalog-table .cell-actions .row-detail {
  margin-right: 8px;
  font-size: 13px;
}

/* 窄屏仍保留最小宽度，避免 9 列被挤压变形 */
@media (max-width: 1024px) {
  .catalog-table {
    min-width: 720px;
  }
}

.catalog-table tbody tr.is-compared {
  background: rgba(38, 166, 92, 0.06);
}

.catalog-table tbody tr.is-compared:hover {
  background: rgba(38, 166, 92, 0.1);
}

.compare-checkbox {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.compare-checkbox input {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  width: 18px;
  height: 18px;
  margin: 0;
  background: #fff;
  border: 1.5px solid #c3ccd3;
  border-radius: 3px;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.compare-checkbox:hover input {
  border-color: var(--c-primary);
}

.compare-checkbox input:checked {
  background: var(--c-primary);
  border-color: var(--c-primary);
}

.compare-checkbox input:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.compare-checkbox input:focus-visible {
  outline: 2px solid rgba(38, 166, 92, 0.45);
  outline-offset: 2px;
}

/* 底部悬浮对比清单 */
.compare-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 90;
  background: #1b2021;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 -8px 24px rgba(15, 20, 22, 0.22);
}

.compare-bar[hidden] {
  display: none;
}

.compare-bar__inner {
  display: flex;
  align-items: center;
  gap: 20px;
  max-width: 1360px;
  margin: 0 auto;
  padding: 12px clamp(16px, 3vw, 32px);
}

.compare-bar__head {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 0 0 auto;
}

.compare-bar__head strong {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #fff;
}

.compare-bar__head span {
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.5);
  white-space: nowrap;
}

.compare-bar__list {
  display: flex;
  flex: 1;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.compare-bar__list li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px 6px 12px;
  font-size: 13.5px;
  color: #e8eef0;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 6px;
}

.compare-bar__list button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  padding: 0;
  color: rgba(255, 255, 255, 0.55);
  background: transparent;
  border: 0;
  border-radius: 4px;
  cursor: pointer;
  transition: color var(--t-fast), background var(--t-fast);
}

.compare-bar__list button:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.14);
}

.compare-bar__list svg {
  width: 12px;
  height: 12px;
}

.compare-bar__actions {
  display: flex;
  gap: 10px;
  margin-left: auto;
  flex: 0 0 auto;
}

.compare-bar__actions .btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.compare-bar__clear {
  padding: 9px 18px;
  font-size: 14px;
  font-family: inherit;
  color: rgba(255, 255, 255, 0.78);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: color var(--t-fast), border-color var(--t-fast);
}

.compare-bar__clear:hover {
  color: #fff;
  border-color: #fff;
}

/* 悬浮条出现时为页面留出底部空间，避免遮住内容与回到顶部按钮 */
body.compare-bar-open {
  padding-bottom: 84px;
}

body.compare-bar-open .back-to-top {
  bottom: 100px;
}

body.compare-modal-open {
  overflow: hidden;
}

/* 参数对比弹窗 */
.compare-modal {
  position: fixed;
  inset: 0;
  z-index: 140;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4vh 4vw;
}

.compare-modal[hidden] {
  display: none;
}

.compare-modal__mask {
  position: absolute;
  inset: 0;
  background: rgba(12, 16, 17, 0.72);
}

.compare-modal__panel {
  position: relative;
  display: flex;
  flex-direction: column;
  width: min(880px, 100%);
  max-height: 88vh;
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(10, 14, 15, 0.35);
}

.compare-modal__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 20px;
  border-bottom: 1px solid var(--c-line);
}

.compare-modal__head h2 {
  margin: 0;
  font-size: 16.5px;
  font-weight: 600;
  color: var(--c-text);
}

.compare-modal__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  color: #5b6870;
  background: #fff;
  border: 1px solid var(--c-line-strong);
  border-radius: 6px;
  cursor: pointer;
  transition: color var(--t-fast), border-color var(--t-fast);
}

.compare-modal__close:hover {
  color: var(--c-primary);
  border-color: var(--c-primary);
}

.compare-modal__close svg {
  width: 12px;
  height: 12px;
}

.compare-modal__body {
  /* 表格区域独立滚动，底部操作栏固定可见 */
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
}

/* 参数对照表：深色表头 + 等宽列 + 隔行底色，形成清晰的表格骨架 */
.compare-table {
  width: 100%;
  min-width: 560px;
  table-layout: fixed;
  border-collapse: collapse;
}

.compare-table th,
.compare-table td {
  padding: 8px 12px;
  font-size: 13px;
  line-height: 1.5;
  text-align: center;
  vertical-align: middle;
  border-bottom: 1px solid #e6ebee;
  word-break: break-word;
}

.compare-table thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  padding: 10px 12px;
  background: #1b2021;
  color: #fff;
  vertical-align: middle;
  border-bottom: 0;
}

.compare-table thead th:first-child,
.compare-table tbody th {
  width: 106px;
  font-weight: 500;
  text-align: left;
}

.compare-table thead th:first-child {
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.55);
}

.compare-table tbody th {
  color: #5b6870;
  background: #f7f9fa;
}

/* 列间细线，横向逐项比对时有落点 */
.compare-table thead th + th,
.compare-table tbody td + td {
  border-left: 1px solid #e6ebee;
}

.compare-table tbody tr:nth-child(even) td {
  background: #fafcfc;
}

.compare-table thead strong {
  display: block;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.02em;
}

.compare-table thead em {
  display: block;
  margin-top: 2px;
  font-size: 11.5px;
  font-style: normal;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.58);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 弹窗底部固定操作栏：与表格列宽对齐 */
.compare-modal__foot {
  display: flex;
  align-items: center;
  padding: 10px 0;
  background: #fff;
  border-top: 1px solid var(--c-line);
}

.compare-foot__label {
  flex: none;
  width: 106px;
  padding: 0 12px;
  font-size: 12.5px;
  color: #88949b;
}

.compare-foot__cell {
  display: flex;
  flex: 1;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  padding: 0 12px;
}

.compare-foot__cell + .compare-foot__cell {
  border-left: 1px solid #e6ebee;
}

.compare-btn {
  display: inline-block;
  padding: 6px 14px;
  font-size: 12.5px;
  color: #fff;
  background: var(--c-primary);
  border: 1px solid var(--c-primary);
  border-radius: 4px;
  transition: background-color var(--t-fast), border-color var(--t-fast);
}

.compare-btn:hover {
  background: #1f8f4f;
  border-color: #1f8f4f;
}

.compare-btn.is-ghost {
  color: #4d5a62;
  background: #fff;
  border-color: #d3dce1;
}

.compare-btn.is-ghost:hover {
  color: var(--c-primary);
  border-color: var(--c-primary);
}

.compare-btn.is-disabled {
  color: #9aa6ad;
  background: #f2f5f6;
  border-color: #e3eaed;
  cursor: not-allowed;
}

/* 弹窗打开时隐藏底部对比条，避免与弹窗同时出现显得杂乱 */
body.compare-modal-open .compare-bar {
  display: none;
}

@media (max-width: 768px) {
  .compare-bar__inner {
    gap: 12px;
    padding: 10px 14px;
  }

  .compare-bar__head span {
    display: none;
  }

  .compare-bar__actions {
    margin-left: 0;
  }

  .compare-bar__list li {
    font-size: 12.5px;
    padding: 5px 6px 5px 10px;
  }

  body.compare-bar-open {
    padding-bottom: 108px;
  }

  .compare-modal {
    padding: 0;
  }

  .compare-modal__panel {
    width: 100%;
    max-height: 100vh;
    border-radius: 0;
  }

  /* 窄屏：底部操作栏隐藏标签列，按钮按列平分 */
  .compare-foot__label {
    display: none;
  }

  .compare-foot__cell {
    flex-direction: column;
    align-items: center;
    padding: 0 8px;
  }

  .compare-btn {
    width: 100%;
    padding: 6px 8px;
    text-align: center;
  }
}

/* ==========================================================================
   语言切换（中文 / EN）
   桌面端固定在导航右侧；窄屏收进头部，与汉堡按钮同排
   ========================================================================== */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  flex: 0 0 auto;
  margin-left: 20px;
  padding: 3px;
  background: #fff;
  border: 1.5px solid var(--c-primary);
  border-radius: 999px;
  box-shadow: 0 2px 10px rgba(38, 166, 92, 0.16);
}

.lang-switch a {
  display: inline-block;
  padding: 5px 13px;
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.04em;
  color: #5b6870;
  text-decoration: none;
  border-radius: 999px;
  transition: color var(--t-fast) ease, background-color var(--t-fast) ease;
}

.lang-switch a:hover {
  color: var(--c-primary-deep);
  background: #eef7f1;
}

.lang-switch a.is-active {
  color: #fff;
  background: var(--c-primary);
}

/* 首页首屏深色导航态：切换器跟随反白，保持高对比 */
body[data-page="home"] .site-header.is-dark .lang-switch {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.72);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.22);
}

body[data-page="home"] .site-header.is-dark .lang-switch a {
  color: rgba(255, 255, 255, 0.85);
}

body[data-page="home"] .site-header.is-dark .lang-switch a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.16);
}

body[data-page="home"] .site-header.is-dark .lang-switch a.is-active {
  color: #16372a;
  background: #fff;
}

@media (max-width: 1024px) {
  .lang-switch {
    margin-left: 10px;
    padding: 2px;
  }

  .lang-switch a {
    padding: 4px 9px;
    font-size: 12.5px;
  }
}